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i.e., not methadone — Preceding unsigned comment added by 24.20.192.253 ( talk) 02:19, 17 November 2013 (UTC)
I just added it yesterday, I thought it should be mentioned since there are some who still try and inject the pills. They usually do a tedious filtration thinking it will remove any harmful ingredients but it WILL NOT. It will only disperse the particles at most. The same goes for any other pills containing talcum, from ritalin to oxycodone. Injecting the liquid methadone is usally safer but it's still *not* a good idea because of the high volumen of liquid required, plus the various soluble additives. There is really(or should not be) not much motivation for injection since the bioavailiability is around 60% orally. There is actually a rush yes but it disappears(or rather, is greatly reduced) after a few months of use. It is possible to get 'high' from methadone in the start but it doesn't take long before it's gone for good. Larger doses may get you feeling 'wasted' but the euphoria will be gone. The number one problem with methadone is something else: the number of deaths/suicides involving combinations of other drugs and methadone.
Besides that, methadone is a good drug for both maintance and pain relief provided it's used correctly. It's one of the few opiates that will not require endlessly higher and higher doses, possible due to its NMDA receptor antagonism. It will not completely prevent concurrent abuse of other drugs but it will *greatly* reduce it. Many junkies on methadone still do occasionally heroin as a side abuse when they have the money. But it's nothing compared to the daily hunt they used to do everyday before. Remember that there is no permanent treatment of opiate addiction so far, only harm reduction, This is what methadone does. By the way, it's not really harder to get off methadone than other opiates although it must be done in a different way. However it takes more TIME because one has to take into account the long half life of methadone. This means it takes much much longer to taper off than short acting opiates. You can only reduce the daily dose with 5-10% every month even when you're down to one pill of 20 mg. Personally I think we will have a real cure(possibly an ibogaine analog) for opiate addiction within 15-20 years. M99 87.59.103.3 ( talk) —Preceding undated comment added 19:27, 25 May 2009 (UTC).
TO THE AUTHOR OF THIS POST: I find your use of the word "junkie" to be extremely prejudicial, and, for lack of a better word, rude. No self-respecting individual in the medical field would ever label an addicted person a "junkie." The word "addict" would have sufficed.
I noticed the "controversy" section has some unsourced statements, particularly the first sentence. Can this be deleted, or is that a violation of protocol? —Preceding unsigned comment added by 68.80.193.90 ( talk) 10:26, 31 May 2009 (UTC)
The statement, "In late 2004, the cost of a one-month supply of methadone was $120" is unclear as no specific dose amount is given or associated with that time interval. Cost depends on dose and dose depends on patient need. 500 mg/day would obviously incur a greater cost per month than say 5 mg/day. —Preceding unsigned comment added by 76.180.195.34 ( talk) 14:09, 3 June 2009 (UTC)
For instance, with short term use methadone is stimulating, euphoric and invigorating(which, along with the intense euphoria, is what get people addicted). Like other opiates such as morphine it has a doping effect when used in sport. But with chronic use(say >3 months), the opposite happens with tendency to weight gain, sleepiness, chronic fatigue and possibly depression. Methadone in terms of unpleasant side effects is certainly the most physically taxing of the opiates, with the exception of LAAM. One of the most hated side effects with chronic methadone use besides the fatigue is sweating and heat intolerance. Some doctors prescribe anticholinergics to ease this side effect but it's my impression that it doesn't help much except perhaps reduce the sweating a little. It will not stop the hot flashes and the intense vasodilation that makes users sweat and suffer during the summer. When someone looks at the side effects, it may be a bit confusing since the side effect profile is very different(like most other opiates) with acute vs. chronic use. The solution could be to arrange the side effects in a table instead of a list. M99 87.59.79.24 ( talk) —Preceding undated comment added 19:02, 3 June 2009 (UTC).
William Burroughs, in his 1954 book "Junkie" states that, about 1950 whilst an inmate of the government treatment facility at Lexington Kentucky, he was given "Dolophine, a synthetic horror, appropriately named after Adolph Hitler" . This, the first mention in literature of this common fallacy, leads me to think that Mr Burroughs is the source of this myth.
118.92.223.205 ( talk) 00:41, 5 June 2009 (UTC)
A 22 hour mean terminal elimination half life doesn't seem right to me. Most sources/studies report longer. Some values on the web:
http://www.medscape.com/viewarticle/441934_3 : Mean = 31.8
Google Books: Principles and Practice of Anesthesiology : Mean = approx. 35
www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2042854 : Range = 33-46 (small sample)
Some one should look up some articles and compile a good average. Right now I'm changing the mean to "approx. 32 hrs" —Preceding unsigned comment added by 24.196.111.104 ( talk) 08:23, 10 June 2009 (UTC)
honestly i wonder who they use to determine these halflives. are they reasonably naive, or are they people who are on a stable dose of various levels ?
i mention this because from experience i dont think it could be as high as 35hrs. and that upper range of 46hrs is perplexing. i also wonder if they were careful to control the sample for any liver pathway abnormalities. i dont think im so unusual in feeling that as the vast majority need dosing everyday the claim of 33hrs is even too high. im fairly confident that the many people ive talked to have the experience that methadone does not have as long a halflife as buprenorphine. —Preceding unsigned comment added by 220.101.91.57 ( talk) 13:03, 2 February 2010 (UTC)
The half life is determined by measuring the blood levels of the drug in question at regular, short intervals after ingestion. This is also how bioavailability and the time taken to reach maximum blood levels, as well as what that maximum is, are determined. With most, if not all, opioids, the euphoria and other, "pleasant" effects wear off long before miosis, respiratory depression and other "undesirable" effects. There is nothing unique about methadone in that regard. 58.175.29.162 ( talk) 23:50, 21 October 2014 (UTC)
In the history section there's a somewhat confusing run-on sentence referencing two people named "Laura Clyde" and "Dr. Dickson". What's the relevance of this? Neither of these names is linked to another article and neither is mentioned in the History section prior to this sentence. I don't want to unilaterally delete it because I know very little about the topic, but I do think it would be a good idea for someone who does know about it to either explain or delete the sentence (actually, the sentence makes perfect sense both grammatically and logically up to the the comma following "World War II" and only drifts off into incoherence following that point). —Preceding unsigned comment added by 68.107.60.161 ( talk) 17:39, 2 July 2009 (UTC)
The History section contains the following paragraph:
This is not logical. What findings were dismissed by Laura Clyde? Probably some previous editing operation left this paragraph in an unfinished state?
Jpalme ( talk) 18:53, 25 July 2009 (UTC)
How can a drug cause both anorexia AND weight gain? —Preceding unsigned comment added by 98.213.120.190 ( talk) 04:07, 8 August 2009 (UTC)
A drug can cause both anorexia AND weight gain. Just not on the same person. Any drug, not just methadone, react differently to different people..( Commonsense4 ( talk) 06:27, 11 April 2012 (UTC)){comment added by Commonsense4 ).
I have heard that methadone can be abused? I can't find very much as far as references, but I've heard about this in an unpublished research study on rural lifestyles. Rhetth ( talk) 19:40, 9 August 2009 (UTC)
This article makes methadone look like it has no recreational potential, which is untrue. It should still have a "recreational use" section like other drugs pages. —Preceding unsigned comment added by 92.25.34.168 ( talk) 16:08, 23 March 2010 (UTC) I agree 100 percent; not only does methadone have recreational potential, but it is also very potent. Some find it quite euphoric. It is just as dangerous a drug as other opiates, and the withdrawals are more severe then those of the codeine type.
1) Article contradicts itself; who made it first, Mallinkrodt or Eli Lily?
2)Amidom name mentioned with no explanation
There really should be more coverage of the actual cost of Methadone, as compared to seriously inflated costs by treatment programs who are astute enough to find that they can inflate costs to at the least, 5 times it's actual cost. The difference between a person filling a prescription at a licensed pharmacy, for a monthly cost of $30.00 USD and a clinic that might charge as much as $240.00/week is huge.-- Leahtwosaints ( talk) 00:23, 8 September 2009 (UTC)
Under the Analgesic section, I added a bunch of references to it being preferred for pain patients due to lower cost. However, I had quite a hard time finding any specific costs. The only way to get specific cost data seems to be calling pharmacies directly to ask what they would charge, which wouldn't exactly be citeable. If there was a study that did this research, it would be nice to find - to cite wholesale cost, cost at pharmacies, and cost at clinics, and presumably including regional differences. Jqrt ( talk) 00:06, 8 February 2010 (UTC)
References [26] and [27] do not really show what is claimed in the text. In [26], methadone was compared against slow release morphine, with no control group, and was found to be SAFER, yet it is claimed that "Methadone treatment can impair driving" in the wiki section. I don't see any evidence for that in the reference. The statement
"Patients are demonstrated to have extremely high involvement in serious crashes, as a study by Queensland University showed that 220 patients had been involved in crashes killing 17 people between them versus a control group of other patients randomly selected having no involvement in fatal crashes."
implies that these are patients on methadone, but in [27] they are opiate addicts. How does this relate directly to methadone? [27] also relates to driving history, not driving while on opiates specifically. There could be many reasons for correlation that do not imply causality. —Preceding unsigned comment added by 220.244.164.109 ( talk) 04:10, 30 October 2009 (UTC)
Methadrone redirects to
Methadone, but I am pretty sure it should not
The name is appearing in UK media as that of a new 'legal high' sold as fertiliser
Laurel Bush (
talk)
15:41, 7 January 2010 (UTC)
I have found this -
Use of legal, cheap drug on rise, fears councillor, Press and Journal website, 29 December 2009 - and
Methadrone is no longer a redirect
Laurel Bush (
talk)
13:10, 8 January 2010 (UTC)
I added the Dosage Reduction section. I believe my addition is consistent with Wikipedia rules but would like some verification of this. There are several leading paragraphs that do not have citations embedded. This text is my summary of this issue from the articles in the six citations I added. The citations follow the introductory paragraphs because there are four quotes that I believe fall within Wikipedia's fair use guidelines - each the minimal amount of text to make the point, and a tiny portion of the overall article, and with the citation immediately nearby. Two other articles are cited at the end of the section, however they did not contain the relevant text in an bite-sized portion that I believe is useful and consistent with the fair use guidelines. So my three questions are: Is the leading text in my own words appropriate, given that it contains no citations, considering that it is backed by citations that follow immediately after. Also, is the small amount of text I quoted appropriate per the fair use guidelines. And finally, most of the articles I cite contain their own large list of citations - if I included some of these and more quotes from those articles, I believe I'd be creating an unnecessarily long section without adding any information. So I want to be sure that this is not necessary..
I realize also that I've duplicated some information under the Dosage section (anywhere else?). Overall the article hasn't ever had a good flow, and although I didn't improve it, at least the additional information and citations can be used in a rewrite/reorg that improves it...
Perhaps separate sections on initial dosage for new patients (including titration from another opiod), vs dosage reduction to taper down to nothing, vs dosage titration to move to another opiod (for which there is minimal literature that I could find, as most is aimed at moving towards methadone, however it must exist as this practice is not uncommon), would be a step towards improving the flow of the article, and provide places to move some text that is a bit out of place. I don't want to make this kind of change without some opinions.
(I realize the citations themselves that I added need some improvement as well, I wasn't going to clean this up until making sure I didn't do anything grossly improper and after checking the citations under the existing Dosage section as well) Jqrt ( talk) 04:04, 6 February 2010 (UTC)
The artical actualy contradicts itself. Early in the article it talks about tapering or what is commonly called 'detoxing' at a fairly slow rate where someone whould be off 100mg in 18 to 24 months. Theat should work out to a 2.5 % reduction in doase per week give or take. However in the above commented section they are referencing a 10% per week reduction. Personal experience as an addiction Cert. MD I'll chime in that i've seen the majority of people fall at 5% with a span between 2.5 and 10% some even tolerating faster some needing WAY slower. The metabolism is increadably variable as stated all over the place. Tapers are very variable what someone will tolerate.
MAD, MD ASAM cert. —Preceding unsigned comment added by 72.37.171.156 ( talk) 18:49, 28 February 2011 (UTC)
On April 16, 2010, it was deemed as class B in the UK, making consumption and distribution illegal. More info needed. —Preceding unsigned comment added by 78.33.162.218 ( talk) 11:09, 16 April 2010 (UTC)
It should be stated in here some where that it is fatal to children. I have heard of a few cases of infants dieing from ingesting methadone and one of those cases hit close to home. A friend of mine was on methadone and his 16 month old daughter ended up getting a hold of it and drinking it. Both of her parents did not realize that it could be harmful to her. So they didn't not seek medical help and it ended up killing her. And now they are getting criminal charges against them. I think ALL parents that are taking this should be told that it can be fatal to children. —Preceding unsigned comment added by 206.163.233.171 ( talk) 01:41, 24 April 2010 (UTC)
Under "Side effects" it is split into two sections - "physical" and "cognitive". The last item listed under "cognitive" is Sudden Death which is not a cognitive problem, obviously death is a PHYSICAL problem. It should be moved to "Physical" and removed from "cognitive".
Zoongitozi (
talk)
03:08, 1 April 2013 (UTC)
I would LOVE to know who removed the link to my org's website....that has been on these pages for about the last 5 years. There is tons of good info and support for people on Medication Assisted Treatment....including our Methadone Pregnancy page which is so important. Thanks.....Carol ( Chava ( talk) 00:01, 3 May 2010 (UTC))
Methadone clinics in the U.S. charge anywhere from $50–300 per week, which may be covered by private insurance or Medicaid. However, the many "cash-only" clinics do not accept insurance, forcing patients to pay up front and then seek reimbursement from their carrier, a process which is fraught with difficulty and a long history of denied claims.
I removed the statement that it is difficult to file methadone claims with insurance carriers, and that there is a "long history of denied claims". No citation was placed to substantiate this claim, and I could not find any evidence to support this statement. Furthermore, these statements are harmful. This information should not be re-added unless citations can be presented. —Preceding unsigned comment added by P07r0457 ( talk • contribs) 03:56, 7 May 2010 (UTC)
I found this paragraph on the ketamine page to underline an assumption I've had behind the more severe withdrawal of methadone above and beyond the longer half-life (the colloquial "it gets in your bones" folk-myth about "kicking" methadone) of other opioids and an idea of its other mode of action unique to it aside from the mu receptor agonism of the morphine class drugs:
..."Many long term users report "K-pains" or "ketamine cramps". The exact cause of these pains are unknown. The Ketamine induced abdominal pain is primarily limited to users injecting a gram or more of ketamine a day. It has been suggested that the amino acid Tyrosine may help alleviate the pain."...
This may relate to NMDA antagonism as a source of pain when the dissociate anesthetic effects are accounting for in a wide inventory of users subjective effects upon its subjects. Ketamine itself isn't as widely used nor have as large of a subject pool as does those upon methadone maintenance. Nagelfar ( talk) 08:06, 3 August 2010 (UTC)
As you can read in the article (in the Chembox in the upper-left corner) it says that the half-life of Methadone is 24-36 hours (and below under Metabolism section that it can actually range from "... as few as 4 hours to as many as 130 hours"). But this is not the main point of my post.
You see, in this section there's nothing mentioned about one certain specialty of Methadone, which is that the actual level of the drug in blood (SML - Serum Methadone Level) is increasing for the 4-5 days until the level of Methadone in blood becomes "stable" (i.e. it's not increasing anymore). I mean, after the initial doze is taken, then after 24 hours when a patient takes another doze, he/she still has half of the previous day's doze in his/her blood serum, therefore the half-life on the 1st day is not the same as on 2nd day (and so on until 5th day).
So what I want to point out is that one "type" of half-life if a drug is consumed just once (and then flushed out of the system), compare to if a drug is consumed one day after another (i.e. more than one day would be enough to make a point).
For better understanding what I mean (am trying to say), please see the Figure 1 on the 2nd page in this Addiction Treatment Forum - Dosing and Safety .pdf file. -- Wayfarer ( talk) 00:07, 23 October 2010 (UTC) What you are describing is due to the long halflife; the halflife does not change. The term "halflife" means the amount of time taken to remove half of the total amount of drug present in the body, not just the last dose. A much broader point needs to be made here... this is an encyclopaedia article, not a guide to the safe use of Methadone or a manual on how to achieve stable levels of Methadone in the body. As such, a few brief statements on usual dosages employed in pain relief, and opioid replacement therapy, are all that should be included. 58.175.29.162 ( talk) 07:55, 22 October 2014 (UTC)
Near the beginning of this article the date of 1937 is given for when methadone was invented. At the beginning of the History section the date of 1939 is given. Can the correct date be established? ( 1Gyrfalcon ( talk) 23:21, 20 November 2010 (UTC))
The first paragraph under Withdrawal symptoms reads as follows:
At high maintenance doses, sudden cessation of therapy can result in withdrawal symptoms described as "the worst withdrawal imaginable," lasting from weeks to months.[33]
The cited reference ( http://www.heroinaddiction.com/heroin_methadone.html) does not include this quote. I suggest deleting the quotation or correcting the reference. —Preceding unsigned comment added by 130.154.0.250 ( talk) 22:51, 8 February 2011 (UTC)
As an individual taking 180mg per day I ran out of my prescription on a holiday weekend and had to to quit cold. I stretched out the pills I had left but came up short anyway and I made it 22 hours before "the worst pain imaginable" did occur. Shocks like electrical strikes spiked through my body causing spasms. I screamed out in this intense pain every few seconds for about a minute or less then the shocks would subside for a few minutes then return again after allowing me to catch my breath. Finally the pharmacy that had held my prescription over that weekend opened up for business and it was filled. My wife fed me 6 pills which i put under my tongue for quicker relief and allowed the pills to melt which, to me, is quicker than swallowing whole. — Preceding
unsigned comment added by
75.172.51.132 (
talk)
12:00, 16 May 2012 (UTC)
Isomethadone is redirected here. I've drawn isomethadone and put it in the commons if anybody cares to work out where to put it! The file name is Methadoneisomer.jpg. 2829 VC 20:56, 28 February 2011 (UTC)
In the text (under "Metabolism") the half life was listed as 15-60 hours with some references to values even outside of this range. Thus I edited the half life on the side of the page to also reflect 15-60 hours instead of 24-36 hours. People often use this data as a definitive value (for better or worse!) so it would make sense to give a more accurate value here. — Preceding unsigned comment added by 66.214.24.45 ( talk) 16:20, 28 November 2011 (UTC)
Joseph, R.; Moselhy, H.F. (2005). "National survey of methadone prescribing for maintenance treatment: 'opiophobia' among substance misuse services?". Psychiatric Bulletin 29 (12): 459–461. --- Someone cited the above article as saying that some patients are prescribed upto 750 mg per day of methadone. The article doesn't say that. I quote: "The maximum dose of methadone prescribed for maintenance ranged from 9 to 325 mg, with a mean of 116 mg. The minimum dose ranged from 1 to 70 mg. The mean daily dose for each centre was 47 mg (range 9-100)." Please be careful not to cite references incorrectly. When I saw "750 mg/day", it immediately struck me as an error and I looked up the paper and indeed found no mention of 750 mg/day. — Preceding unsigned comment added by 70.49.48.63 ( talk) 02:04, 10 March 2012 (UTC)
I do not believe it is an error as I know several pain patients that are on 650 mg or MORE a day and with opiates there is no real "ceiling dose" (the point at which the drug becomes toxic). The dosage depends on the needs of the patient as well as how opiate tolerant they are or are not. I will try to find a credible source when I have more time.
Zoongitozi (
talk)
04:39, 20 August 2013 (UTC)
Place holder for discussing the following:
"It can also be found in urine samples six to ten weeks after the last dose.[citation needed][dubious – discuss] It was generally thought it left the system 2–3 days after last use but this is not the case,[citation needed][dubious – discuss] many factors contribute to how long it will stay in the system. It depends an individual's body weight, metabolism, history of use/abuse and many more factors. In studies done on Methadone users going through detox, individuals experienced different withdrawal symptoms and withdrawal periods even though they received their last dose at the same time.[citation needed][dubious – discuss] When they gave blood and urine samples the methadone showed up in some individuals samples as much as four weeks after it was not evident in other individuals samples.[citation needed]" — Preceding unsigned comment added by 70.114.234.99 ( talk) 23:50, 27 June 2012 (UTC)
I do not believe it is an error as I know several pain patients that are on 650 mg a day, I will try to find a credible source when I have more time. Zoongitozi ( talk) 02:53, 1 April 2013 (UTC)
I removed the reference to Methadones supposed 'blocking effect' on the euphoric effects of other opiates. Methadone is a full mu-opoiod agonist, not an antagonist. so it does not have any 'blocking' effects like buprenorphine has. The reason people on MMT find it hard to get high is because of cross-tolerance, not because of some mechanism specific to methadone, — Preceding unsigned comment added by 87.210.93.31 ( talk) 21:36, 17 April 2013 (UTC)
I've been on methadone maintenance since the year 2000. Started at 20 mg, my highest dose was 70. Last year I started gradually reducing in order to get the fuck off of it already as I am becoming odler and older and it will be harder even more the longer I wait. So now I'm down to 24mg, been reducing a couple mg every couple months. So around 20mg it starts becoming uncomfortable and now I feel it. So say I finally reach 2mg then 0 mg - will I be having withdrawal symptoms? For how long? They say methadone withdrawal is hell on earth. I am afraid.
Sorry sweetie, but yes, even when you get down to 1 mg then to none you will still have some withdrawal symptoms. They will be markedly less than, say, quitting cold turkey from 50mg/day, but there really is no way to completely avoid withdrawal. (Unless you want to spend thousands to go down to Mexico for Ibogaine treatment, which is usually one or two days, and, reportedly, no withdrawal and, for most people, complete eradication of opiate cravings) Anyway, when your withdrawal begins, it will suck on day one, peak at day 3, then start to wane, (many people say the worst parts of methadone withdrawal are the inability to sleep, the hot flashes, and, the worst: the Restless Leg Syndrome) but it can take days, to, weeks, to even months to feel "completely normal." Most people have the most issues with sleep, sometimes for up to a year after their last dose. i.e. That consistent sleep is difficult, and fitful.
Some people have found withdrawal symptom relief by taking doses of Imodium (loperamide), and while it DOES help curb the withdrawal, it only does so because it, too, is an opiate. When you take it, after it wears off, you are starting your withdrawal all over again from step 1...and because Imodium/loperamide is OTC, many withdrawal-ing individuals will take it for relief, and continue to do so, now causing them to be physically addicted (loperamide does not cause a "high") to the Imodium. i.e. If they stop taking it at regular intervals, withdrawal begins...if they take it again, it goes away...so begins a vicious cycle.
I'd advise you to give yourself a week at home after your last dose (working/activities/responsibilities may prove difficult after day 2-6) and try Tylenol or Motrin for pain. Some people use diphenhydramine (Benadryl) for help with sleep, but some say it made Restless Leg Syndrome worse. Some try to get benzodiazepines, either by Rx or illegally, to help "take the edge off" and, while benzos can be effective during withdrawal, it is also very easy to use them as a "crutch" and quickly become addicted to the Benzos (NOTE: benzo withdrawal is notoriously awful, worse than any opiate withdrawal -even methadone- has more incidences of psychiatric issues during withdrawal, and can be fatal...so if you go the benzo-route BE CAREFUL! Try not to get frustrated with the no-sleep issues...and fear will only make your symptoms seem worse. Keep telling yourself, after day 3, that it can only get better...good luck — Preceding unsigned comment added by MandyHarenza ( talk • contribs) 15:16, 16 January 2014 (UTC)
Hello I had been taking methedone for 3 years for pain. For 3 months I took 5-10mg a day to ween off. Now I have been totally off for a week now and the worst withdrawals are pain and anxiousness in my legs which is very annoying and uncomfortable and affects my daily life. How long will this last and will the withdrawal symptoms get worse? ZGoing back on the meds is not an option. Neither is saboxyn or anything of the nature. I really want these meds out of my system. How long will I have to deal with these withdrawals?? I thought I weened off the right way — Preceding unsigned comment added by 71.168.105.15 ( talk) 13:59, 22 April 2013 (UTC)
Hi, diacetylmorphine, oxycodone, and other similar opioid addictions often use methadone for withdrawals, and switch an addiction from heroin to methadone. As it's been shown in studies (Please don't make me reference them) that methadone withdrawal can be much more severe, dependence liability should be just as high as other highly addictive opioids/opiates. — Preceding unsigned comment added by 108.169.0.79 ( talk) 10:45, 29 May 2013 (UTC)
It is not used recreationally often, my friend, but although it's main use is medical (and it's handed out at clinics), I've met a lot of people who are severely addicted to methadone, whereas they were previously addicted to heroin. I realize "people I know" isn't necessarily a good reference, I can provide a better one if need be.. but there is a vast palette of nasty withdrawal symptoms, and who's to say you can't become dependent to medicine? If the dependence liability for ketamine is "medium" and the withdrawal symptoms aren't nearly as severe, this page should be equivalent. — Preceding unsigned comment added by 108.169.0.79 ( talk) 18:59, 30 May 2013 (UTC)
Ah, yes, but you're aware that methadone has quite an increased potency compared to weaker opioids i.e. hydrocodone, even if it has more action at kappa receptors. I think the fact alone that it is schedule II in the US, and the definition of Schedule II drugs is "high abuse liability but accepted medical use" should be sufficient. http://www.acnp.org/g4/GN401000168/CH164.html section:Acute Physical Dependence compares the dependence liability to morphine by mapping mu and k opioid antagonist action. I think.. Look. It's a very potent drug, 2 10mg tablets have killed a girl. It can be euphoric, and if you take it with other drugs such as hydrocodone, you can have a severe (and I mean SEVERE) reaction to combining the drugs after the effects wear off. This happens often. You can puke every 5 to 10 minutes, turn whitish yellow, shake, itch.. For at least 24 hours. It's as easily abused as other opiates. It can't have a "low" abuse potential. Not possible. Tylenol has a low abuse potential.
The "Other uses" section requires various corrections--primarily in grammar, spacing, capitalization, and punctuation. I have provided a suggested edit:
Methadone linctus, which is prescribed in 1 mg/2.5 mL concentration, is used (where approved) as a remedy for violent coughing. It is also a potential new therapy for leukemia--especially in patients whose cancer is non-responsive to chemotherapy and radiation.[28]
The chemical synthesis of methadone begins with the alkylation of a diphenylacetonitrile anion (which is produced via reaction of a strong base with diphenylacetonitrile) by 1-dimethylamino-2-chloropropane. This produces a 1:1 mixture of isomeric nitriles: high-melting 2,2-diphenyl-4-dimethylaminovabrionitrile, and low-melting 2,2-diphenyl-3-methyl-4-dimethylaminobutyronitrile. Reaction between the high-melting nitrile and ethyl magnesium bromide, and a subsequent hydrolysis, yields methadone. — Preceding
unsigned comment added by
69.180.236.107 (
talk)
05:23, 30 May 2013 (UTC)
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I got the "Articles you might like to edit, from SuggestBot" and it had this article on it but no "x" in any of the boxes and no box stating any needs or edit suggestions such as sources needed etc., so am just curious if there was a need and is no longer or if i just get that suggestion because it is a topic i have been interested in when editing in the past? TattØØd Ẅaitre§
...Even if it were not an advertisement, this arcane info does not belong in the Lead. See also: Wikipedia:Manual of Style (lead section)...and it's too technical for the Lead which must be understandable to overworked Joe Boobtube. Here is the ad:
Covidien (formerly Mallinckrodt), is the major racemic methadone producer and sells bulk methadone to producers of generic preparations and distributes its own product in the form of tablets, dispersible tablets and oral concentrate under the brand name Methadose in the United States. [1]
-- 69.110.90.54 ( talk) 18:53, 4 August 2013 (UTC)Doug Bashford
I'm not sure about the long list of side effects as it stands. Some of the listed effects are not common, in fact the very first item listed is "Thrombus", is not common and probably is of no concern for most patients or clinicians. Taking the article on Lithium (medication) as an example, I think more explanation is needed for the side effects section - for instance mentioning that some of the serious effects mentioned such as seizures are rare. I think overall, this article gives an unbalanced, negative view of methadone. It gives long lists of side-effects and withdrawal symptoms without adequate discussion of the role it can play in reducing heroin/other opioid use (a mere one sentence). I have never really contributed to a Wikipedia article - maybe I need to learn how to make some changes to this one. 59.167.255.139 ( talk) 03:59, 4 September 2013 (UTC)
I think we should add the following section under Pharmacology given the increased desire for knowledge of pharmacogenomics purposes. Researchers, clinicians, and patients can find this information useful.
A significant association exists between the variants of the CYP2B6 gene, and increased methadone concentrations in the blood, where methadone toxicity was determined to be the cause of death. The *4, *9, and *6 variants are implicated. [2]
i believe australia now (2014)only has 10mg tablets — Preceding unsigned comment added by 101.113.71.163 ( talk) 06:55, 27 February 2014 (UTC)
Acyclic analog ==
What does this actually mean? It's fairly early on in the text, with no explanation, and subsequent googling reveals little. Yet, apparently, methadone works because "it is an acyclic analog of morphine or heroin." An immediate question that springs to mind is, 'Is the fact it's acyclic important, or are there analogs that are the opposite of acyclic?' — Preceding unsigned comment added by Mandybrigwell ( talk • contribs) 00:29, 27 July 2014 (UTC) Encyclopaedic articles are rarely fully self contained; almost all will contain terms that are not defined or explained in the article. A certain level of knowledge MUST be assumed, or all articles would be so long that they would take years to read. E.g. The article for the colour blue mentions wavelength, the fact that it is a spectrum colour, the black body temperature that it corresponds to, the energy in electron volts carried by a photon of blue light, and other things that only people with a fair knowledge of physics will truly understand. The term "acyclic analog" requires a fair knowledge of chemistry to understand it. It is a full description of the relationship of the methadone molecule to the morphine molecule. 58.175.29.162 ( talk) 09:01, 22 October 2014 (UTC)
Acyclic analog ==
What does this actually mean? It's fairly early on in the text, with no explanation, and subsequent googling reveals little. Yet, apparently, methadone works because "it is an acyclic analog of morphine or heroin." An immediate question that springs to mind is, 'Is the fact it's acyclic important, or are there analogs that are the opposite of acyclic?' — Preceding unsigned comment added by Mandybrigwell ( talk • contribs) 00:29, 27 July 2014 (UTC) Encyclopaedic articles are rarely fully self contained; almost all will contain terms that are not defined or explained in the article. A certain level of knowledge MUST be assumed, or all articles would be so long that they would take years to read. E.g. The article for the colour blue mentions wavelength, the fact that it is a spectrum colour, the black body temperature that it corresponds to, the energy in electron volts carried by a photon of blue light, and other things that only people with a fair knowledge of physics will truly understand. The term "acyclic analog" requires a fair knowledge of chemistry to understand it. It is a full description of the relationship of the methadone molecule to the morphine molecule. 58.175.29.162 ( talk) 09:06, 22 October 2014 (UTC)
In Equianalgesic article there's this line with no source cited "Methadone is different from most opioids considering its potency can vary depending on how long it is taken. Acute use; 1–3 days, yields a potency about 4× stronger than that of morphine and chronic use (7 days+) yields a potency about 7–8× that of morphine due to methadone being stored in fat tissue, thus giving higher serum levels with longer use." is this true and is it explained in some other way in this article?-- Custoo ( talk) 23:39, 23 November 2014 (UTC)
I thought it was a brand of the levo isomer specifically and the "L-" in the brand name list at the levomethadone page was a redundancy (like the some certain odd article that has "HCl" in the page title) but I'm wanting someone to confirm please. 18:57, 24 October 2015 (UTC)
The following is unsourced; moved here til it can be sourced. It was also added to a section on drugs used in treatment of addicts, and doesn't belong there.
There are two methadone isomers that form the racemic mixture which is more common as it is cheaper to produce. The laevorotary isomer, which is isolated by several recrystalisations from racemic methadone, is more expensive to produce than the racemate. It is more potent at the opioid receptor than the racemic mixture and is marketed especially in continental Europe as an analgesic under the trade names Levo-Polamidone, Polamidone, Heptanone, Heptadone, Heptadon and others. It is used as the hydrochloride salt almost exclusively with some uncommon pharmaceuticals and research subjects consisting of the tartrate. The dextrorotary isomer d-methadone is not commercially available. It is devoid of opioid activity and it acts as an NMDA antagonist. It has been shown to be analgesic in experimental models of chronic pain.
- Jytdog ( talk) 23:25, 3 April 2016 (UTC)
Where is information about methadone's Mechanism of action? General NMDA antagonist information and it's antiaddictive properties don't belong here. Even if methadone has some NMDA antagonist activity it surely doesn't dictate the effects nor is there addiction reduction. This should be talking about the mechanism of action of methadone like opioid activity and some mention of its NMDA antagonist activity as well. Five- ( talk) 16:21, 8 April 2016 (UTC)
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The chemical half life does not reflect the duration of desired effect. [1] Have moved the chemical half life to the body. Doc James ( talk · contribs · email) 22:28, 31 March 2018 (UTC)
Hi everyone, I (Carolyn Tang) along with 4 others (Tiffany Guan, Jasper Hai, Emily Hsu, and Justin Sims), will be revising different sections of this article in the next several weeks. Our goals are to restructure the content of this article to make it more concise and to expand on concepts regarding the societal and cultural aspects of methadone maintenance treatment. Specifically under the "Society and culture" section, we plan to move the "Medication" portion to the top of the "Cost" sub-header. Additional information will be provided under the "Methadone maintenance treatment" section to expand on how methadone clinics are compensated in the US, e.g. VA Medical Centers. We will discuss AB 1963, a bill proposing the need to increase Medi-Cal provider reimbursement rates for opioid addiction treatment. We also plan to add a new "Health policy" sub-header under "Society & culture". Other revisions include moving the "Brand names" sections to a more appropriate section of this article and expanding on the "trade names" section in the right column at the top of the page. The aforementioned information will be gathered from guidelines and journal reviews. We welcome any feedback and suggestions you have! Carolyntang1 ( talk) 03:59, 17 October 2018 (UTC)
1. Does the draft submission reflect a neutral point of view? If not, specify.
All of the added content is very neutral. The edits add appropriate information about the indications that allow coverage for methadone as well as the level of coverage for certain insurances. There is no added commentary to this information and it is very factual. Kwong89 ( talk) 00:46, 8 November 2018 (UTC)Kwong89
2. Are the points included verifiable with cited secondary sources that are freely available? If not, specify.
No citation for the black box warning. The VA and MMT citations are accessible secondary sources. — Preceding unsigned comment added by Pzrx ( talk • contribs) 04:21, 8 November 2018 (UTC)
Asides the above mentioned citation, the majority of the cites used were from credible government sites like drugabuse.gov, WHO, and the VA gov site. These are readily accessible to the public to access as well. — Preceding unsigned comment added by Saellee ( talk • contribs) 18:15, 8 November 2018 (UTC) Saellee ( talk) 18:51, 8 November 2018 (UTC)
3. Are the edits formatted consistent with Wikipedia’s manual of style? If not, specify. I believe the contributions this group made do follow the Wikipedia's manual of style. The manual emphasizes the use of simple language that can be understood by the general public and proper formatting. This group accurately followed the formatting style, except for some citations found before punctuation marks. Citations should immediately follow the text to which the footnote applies, with no intervening space. It should also go after punctuation if applicable. Most of the article is in language that is easy to understand. The only section that may lead to confusion is the "Regulation" section under "Society and culture." It may be beneficial to clarify what an ACSCN number is and to use Gennadiy Onishchenko's full title of Chief Sanitary Inspector of Russia. I like that they compared regulation in different countries and did not only include regulation in the US. Tarynng5 ( talk) 17:59, 8 November 2018 (UTC)
4. Is there any evidence of plagiarism or copyright violation? If yes, specify. I think the contributions made by this group are within the bounds of proper plagiarism guidelines and do not violate any copyright that I can see. The sources added are properly cited and seem to be well placed/properly placed. MichelleBretschneider ( talk) 02:09, 10 November 2018 (UTC)
1. Does the draft submission reflect a neutral point of view? If not, specify… The edits provided good background information on methadone coverage under medicare and indications for coverage. An example of a state's coverage and contingencies was also provided with no personal opinion to it. Treatment method, practice requirements, and cost of services were also provided in a factual format. Much of the edits focused on sources which improved the quality of the paper. Ssrashidi ( talk) 17:46, 8 November 2018 (UTC)
2. Are the points included verifiable with cited secondary sources that are freely available? If not, specify. The Black Box Warning citation is to Epocrates. It is not an easily accessible source due to needing a subscription before viewing. The rest of the sources look good. -- Jtruong93 ( talk) 17:38, 8 November 2018 (UTC)
3. Are the edits formatted consistent with Wikipedia’s manual of style? If not, specify… Edits are good, with the exception of some citations that are added to the wrong place. Citations should always go after punctuation, not in the middle of the sentence. One example is
“Methadone pills often contain talc[56][57] that, when injected, produces a swarm of tiny solid particles in the blood, causing numerous minor blood clots.”
Also it would be a good idea to go through the entire article and find run on sentences, or sentences that are incomplete. One example is
“…by means of suppressing drug cravings and the discovery in the early 1950s.[70] of methadone's antitussive properties first tested in dogs in Europe in 1952-1955 with different inert placebos, active placebos like codeine.[71]”
CarolinaRyklansky ( talk) 17:55, 8 November 2018 (UTC)
4. Is there any evidence of plagiarism or copyright violation? If yes, specify. After an extensive review of the information added and the sources, there does not appear to be any evidence of plagiarism or copyright issues. Information were phrase in their own words and properly cited. An online plagiarism checker was also used and no plagiarism was reported. -- Andy M Nguyen ( talk) 04:46, 10 November 2018 (UTC)
The article currently has no information about the drug's use in canine / feline analgesia. According to this reference, its use is common, at least in the UK. I'm nowhere near an expert in this field, but hopefully someone with pharmacological or vetinary knowledge can add a paragraph. ~dom Kaos~ ( talk) 19:56, 19 July 2020 (UTC)
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i.e., not methadone — Preceding unsigned comment added by 24.20.192.253 ( talk) 02:19, 17 November 2013 (UTC)
I just added it yesterday, I thought it should be mentioned since there are some who still try and inject the pills. They usually do a tedious filtration thinking it will remove any harmful ingredients but it WILL NOT. It will only disperse the particles at most. The same goes for any other pills containing talcum, from ritalin to oxycodone. Injecting the liquid methadone is usally safer but it's still *not* a good idea because of the high volumen of liquid required, plus the various soluble additives. There is really(or should not be) not much motivation for injection since the bioavailiability is around 60% orally. There is actually a rush yes but it disappears(or rather, is greatly reduced) after a few months of use. It is possible to get 'high' from methadone in the start but it doesn't take long before it's gone for good. Larger doses may get you feeling 'wasted' but the euphoria will be gone. The number one problem with methadone is something else: the number of deaths/suicides involving combinations of other drugs and methadone.
Besides that, methadone is a good drug for both maintance and pain relief provided it's used correctly. It's one of the few opiates that will not require endlessly higher and higher doses, possible due to its NMDA receptor antagonism. It will not completely prevent concurrent abuse of other drugs but it will *greatly* reduce it. Many junkies on methadone still do occasionally heroin as a side abuse when they have the money. But it's nothing compared to the daily hunt they used to do everyday before. Remember that there is no permanent treatment of opiate addiction so far, only harm reduction, This is what methadone does. By the way, it's not really harder to get off methadone than other opiates although it must be done in a different way. However it takes more TIME because one has to take into account the long half life of methadone. This means it takes much much longer to taper off than short acting opiates. You can only reduce the daily dose with 5-10% every month even when you're down to one pill of 20 mg. Personally I think we will have a real cure(possibly an ibogaine analog) for opiate addiction within 15-20 years. M99 87.59.103.3 ( talk) —Preceding undated comment added 19:27, 25 May 2009 (UTC).
TO THE AUTHOR OF THIS POST: I find your use of the word "junkie" to be extremely prejudicial, and, for lack of a better word, rude. No self-respecting individual in the medical field would ever label an addicted person a "junkie." The word "addict" would have sufficed.
I noticed the "controversy" section has some unsourced statements, particularly the first sentence. Can this be deleted, or is that a violation of protocol? —Preceding unsigned comment added by 68.80.193.90 ( talk) 10:26, 31 May 2009 (UTC)
The statement, "In late 2004, the cost of a one-month supply of methadone was $120" is unclear as no specific dose amount is given or associated with that time interval. Cost depends on dose and dose depends on patient need. 500 mg/day would obviously incur a greater cost per month than say 5 mg/day. —Preceding unsigned comment added by 76.180.195.34 ( talk) 14:09, 3 June 2009 (UTC)
For instance, with short term use methadone is stimulating, euphoric and invigorating(which, along with the intense euphoria, is what get people addicted). Like other opiates such as morphine it has a doping effect when used in sport. But with chronic use(say >3 months), the opposite happens with tendency to weight gain, sleepiness, chronic fatigue and possibly depression. Methadone in terms of unpleasant side effects is certainly the most physically taxing of the opiates, with the exception of LAAM. One of the most hated side effects with chronic methadone use besides the fatigue is sweating and heat intolerance. Some doctors prescribe anticholinergics to ease this side effect but it's my impression that it doesn't help much except perhaps reduce the sweating a little. It will not stop the hot flashes and the intense vasodilation that makes users sweat and suffer during the summer. When someone looks at the side effects, it may be a bit confusing since the side effect profile is very different(like most other opiates) with acute vs. chronic use. The solution could be to arrange the side effects in a table instead of a list. M99 87.59.79.24 ( talk) —Preceding undated comment added 19:02, 3 June 2009 (UTC).
William Burroughs, in his 1954 book "Junkie" states that, about 1950 whilst an inmate of the government treatment facility at Lexington Kentucky, he was given "Dolophine, a synthetic horror, appropriately named after Adolph Hitler" . This, the first mention in literature of this common fallacy, leads me to think that Mr Burroughs is the source of this myth.
118.92.223.205 ( talk) 00:41, 5 June 2009 (UTC)
A 22 hour mean terminal elimination half life doesn't seem right to me. Most sources/studies report longer. Some values on the web:
http://www.medscape.com/viewarticle/441934_3 : Mean = 31.8
Google Books: Principles and Practice of Anesthesiology : Mean = approx. 35
www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2042854 : Range = 33-46 (small sample)
Some one should look up some articles and compile a good average. Right now I'm changing the mean to "approx. 32 hrs" —Preceding unsigned comment added by 24.196.111.104 ( talk) 08:23, 10 June 2009 (UTC)
honestly i wonder who they use to determine these halflives. are they reasonably naive, or are they people who are on a stable dose of various levels ?
i mention this because from experience i dont think it could be as high as 35hrs. and that upper range of 46hrs is perplexing. i also wonder if they were careful to control the sample for any liver pathway abnormalities. i dont think im so unusual in feeling that as the vast majority need dosing everyday the claim of 33hrs is even too high. im fairly confident that the many people ive talked to have the experience that methadone does not have as long a halflife as buprenorphine. —Preceding unsigned comment added by 220.101.91.57 ( talk) 13:03, 2 February 2010 (UTC)
The half life is determined by measuring the blood levels of the drug in question at regular, short intervals after ingestion. This is also how bioavailability and the time taken to reach maximum blood levels, as well as what that maximum is, are determined. With most, if not all, opioids, the euphoria and other, "pleasant" effects wear off long before miosis, respiratory depression and other "undesirable" effects. There is nothing unique about methadone in that regard. 58.175.29.162 ( talk) 23:50, 21 October 2014 (UTC)
In the history section there's a somewhat confusing run-on sentence referencing two people named "Laura Clyde" and "Dr. Dickson". What's the relevance of this? Neither of these names is linked to another article and neither is mentioned in the History section prior to this sentence. I don't want to unilaterally delete it because I know very little about the topic, but I do think it would be a good idea for someone who does know about it to either explain or delete the sentence (actually, the sentence makes perfect sense both grammatically and logically up to the the comma following "World War II" and only drifts off into incoherence following that point). —Preceding unsigned comment added by 68.107.60.161 ( talk) 17:39, 2 July 2009 (UTC)
The History section contains the following paragraph:
This is not logical. What findings were dismissed by Laura Clyde? Probably some previous editing operation left this paragraph in an unfinished state?
Jpalme ( talk) 18:53, 25 July 2009 (UTC)
How can a drug cause both anorexia AND weight gain? —Preceding unsigned comment added by 98.213.120.190 ( talk) 04:07, 8 August 2009 (UTC)
A drug can cause both anorexia AND weight gain. Just not on the same person. Any drug, not just methadone, react differently to different people..( Commonsense4 ( talk) 06:27, 11 April 2012 (UTC)){comment added by Commonsense4 ).
I have heard that methadone can be abused? I can't find very much as far as references, but I've heard about this in an unpublished research study on rural lifestyles. Rhetth ( talk) 19:40, 9 August 2009 (UTC)
This article makes methadone look like it has no recreational potential, which is untrue. It should still have a "recreational use" section like other drugs pages. —Preceding unsigned comment added by 92.25.34.168 ( talk) 16:08, 23 March 2010 (UTC) I agree 100 percent; not only does methadone have recreational potential, but it is also very potent. Some find it quite euphoric. It is just as dangerous a drug as other opiates, and the withdrawals are more severe then those of the codeine type.
1) Article contradicts itself; who made it first, Mallinkrodt or Eli Lily?
2)Amidom name mentioned with no explanation
There really should be more coverage of the actual cost of Methadone, as compared to seriously inflated costs by treatment programs who are astute enough to find that they can inflate costs to at the least, 5 times it's actual cost. The difference between a person filling a prescription at a licensed pharmacy, for a monthly cost of $30.00 USD and a clinic that might charge as much as $240.00/week is huge.-- Leahtwosaints ( talk) 00:23, 8 September 2009 (UTC)
Under the Analgesic section, I added a bunch of references to it being preferred for pain patients due to lower cost. However, I had quite a hard time finding any specific costs. The only way to get specific cost data seems to be calling pharmacies directly to ask what they would charge, which wouldn't exactly be citeable. If there was a study that did this research, it would be nice to find - to cite wholesale cost, cost at pharmacies, and cost at clinics, and presumably including regional differences. Jqrt ( talk) 00:06, 8 February 2010 (UTC)
References [26] and [27] do not really show what is claimed in the text. In [26], methadone was compared against slow release morphine, with no control group, and was found to be SAFER, yet it is claimed that "Methadone treatment can impair driving" in the wiki section. I don't see any evidence for that in the reference. The statement
"Patients are demonstrated to have extremely high involvement in serious crashes, as a study by Queensland University showed that 220 patients had been involved in crashes killing 17 people between them versus a control group of other patients randomly selected having no involvement in fatal crashes."
implies that these are patients on methadone, but in [27] they are opiate addicts. How does this relate directly to methadone? [27] also relates to driving history, not driving while on opiates specifically. There could be many reasons for correlation that do not imply causality. —Preceding unsigned comment added by 220.244.164.109 ( talk) 04:10, 30 October 2009 (UTC)
Methadrone redirects to
Methadone, but I am pretty sure it should not
The name is appearing in UK media as that of a new 'legal high' sold as fertiliser
Laurel Bush (
talk)
15:41, 7 January 2010 (UTC)
I have found this -
Use of legal, cheap drug on rise, fears councillor, Press and Journal website, 29 December 2009 - and
Methadrone is no longer a redirect
Laurel Bush (
talk)
13:10, 8 January 2010 (UTC)
I added the Dosage Reduction section. I believe my addition is consistent with Wikipedia rules but would like some verification of this. There are several leading paragraphs that do not have citations embedded. This text is my summary of this issue from the articles in the six citations I added. The citations follow the introductory paragraphs because there are four quotes that I believe fall within Wikipedia's fair use guidelines - each the minimal amount of text to make the point, and a tiny portion of the overall article, and with the citation immediately nearby. Two other articles are cited at the end of the section, however they did not contain the relevant text in an bite-sized portion that I believe is useful and consistent with the fair use guidelines. So my three questions are: Is the leading text in my own words appropriate, given that it contains no citations, considering that it is backed by citations that follow immediately after. Also, is the small amount of text I quoted appropriate per the fair use guidelines. And finally, most of the articles I cite contain their own large list of citations - if I included some of these and more quotes from those articles, I believe I'd be creating an unnecessarily long section without adding any information. So I want to be sure that this is not necessary..
I realize also that I've duplicated some information under the Dosage section (anywhere else?). Overall the article hasn't ever had a good flow, and although I didn't improve it, at least the additional information and citations can be used in a rewrite/reorg that improves it...
Perhaps separate sections on initial dosage for new patients (including titration from another opiod), vs dosage reduction to taper down to nothing, vs dosage titration to move to another opiod (for which there is minimal literature that I could find, as most is aimed at moving towards methadone, however it must exist as this practice is not uncommon), would be a step towards improving the flow of the article, and provide places to move some text that is a bit out of place. I don't want to make this kind of change without some opinions.
(I realize the citations themselves that I added need some improvement as well, I wasn't going to clean this up until making sure I didn't do anything grossly improper and after checking the citations under the existing Dosage section as well) Jqrt ( talk) 04:04, 6 February 2010 (UTC)
The artical actualy contradicts itself. Early in the article it talks about tapering or what is commonly called 'detoxing' at a fairly slow rate where someone whould be off 100mg in 18 to 24 months. Theat should work out to a 2.5 % reduction in doase per week give or take. However in the above commented section they are referencing a 10% per week reduction. Personal experience as an addiction Cert. MD I'll chime in that i've seen the majority of people fall at 5% with a span between 2.5 and 10% some even tolerating faster some needing WAY slower. The metabolism is increadably variable as stated all over the place. Tapers are very variable what someone will tolerate.
MAD, MD ASAM cert. —Preceding unsigned comment added by 72.37.171.156 ( talk) 18:49, 28 February 2011 (UTC)
On April 16, 2010, it was deemed as class B in the UK, making consumption and distribution illegal. More info needed. —Preceding unsigned comment added by 78.33.162.218 ( talk) 11:09, 16 April 2010 (UTC)
It should be stated in here some where that it is fatal to children. I have heard of a few cases of infants dieing from ingesting methadone and one of those cases hit close to home. A friend of mine was on methadone and his 16 month old daughter ended up getting a hold of it and drinking it. Both of her parents did not realize that it could be harmful to her. So they didn't not seek medical help and it ended up killing her. And now they are getting criminal charges against them. I think ALL parents that are taking this should be told that it can be fatal to children. —Preceding unsigned comment added by 206.163.233.171 ( talk) 01:41, 24 April 2010 (UTC)
Under "Side effects" it is split into two sections - "physical" and "cognitive". The last item listed under "cognitive" is Sudden Death which is not a cognitive problem, obviously death is a PHYSICAL problem. It should be moved to "Physical" and removed from "cognitive".
Zoongitozi (
talk)
03:08, 1 April 2013 (UTC)
I would LOVE to know who removed the link to my org's website....that has been on these pages for about the last 5 years. There is tons of good info and support for people on Medication Assisted Treatment....including our Methadone Pregnancy page which is so important. Thanks.....Carol ( Chava ( talk) 00:01, 3 May 2010 (UTC))
Methadone clinics in the U.S. charge anywhere from $50–300 per week, which may be covered by private insurance or Medicaid. However, the many "cash-only" clinics do not accept insurance, forcing patients to pay up front and then seek reimbursement from their carrier, a process which is fraught with difficulty and a long history of denied claims.
I removed the statement that it is difficult to file methadone claims with insurance carriers, and that there is a "long history of denied claims". No citation was placed to substantiate this claim, and I could not find any evidence to support this statement. Furthermore, these statements are harmful. This information should not be re-added unless citations can be presented. —Preceding unsigned comment added by P07r0457 ( talk • contribs) 03:56, 7 May 2010 (UTC)
I found this paragraph on the ketamine page to underline an assumption I've had behind the more severe withdrawal of methadone above and beyond the longer half-life (the colloquial "it gets in your bones" folk-myth about "kicking" methadone) of other opioids and an idea of its other mode of action unique to it aside from the mu receptor agonism of the morphine class drugs:
..."Many long term users report "K-pains" or "ketamine cramps". The exact cause of these pains are unknown. The Ketamine induced abdominal pain is primarily limited to users injecting a gram or more of ketamine a day. It has been suggested that the amino acid Tyrosine may help alleviate the pain."...
This may relate to NMDA antagonism as a source of pain when the dissociate anesthetic effects are accounting for in a wide inventory of users subjective effects upon its subjects. Ketamine itself isn't as widely used nor have as large of a subject pool as does those upon methadone maintenance. Nagelfar ( talk) 08:06, 3 August 2010 (UTC)
As you can read in the article (in the Chembox in the upper-left corner) it says that the half-life of Methadone is 24-36 hours (and below under Metabolism section that it can actually range from "... as few as 4 hours to as many as 130 hours"). But this is not the main point of my post.
You see, in this section there's nothing mentioned about one certain specialty of Methadone, which is that the actual level of the drug in blood (SML - Serum Methadone Level) is increasing for the 4-5 days until the level of Methadone in blood becomes "stable" (i.e. it's not increasing anymore). I mean, after the initial doze is taken, then after 24 hours when a patient takes another doze, he/she still has half of the previous day's doze in his/her blood serum, therefore the half-life on the 1st day is not the same as on 2nd day (and so on until 5th day).
So what I want to point out is that one "type" of half-life if a drug is consumed just once (and then flushed out of the system), compare to if a drug is consumed one day after another (i.e. more than one day would be enough to make a point).
For better understanding what I mean (am trying to say), please see the Figure 1 on the 2nd page in this Addiction Treatment Forum - Dosing and Safety .pdf file. -- Wayfarer ( talk) 00:07, 23 October 2010 (UTC) What you are describing is due to the long halflife; the halflife does not change. The term "halflife" means the amount of time taken to remove half of the total amount of drug present in the body, not just the last dose. A much broader point needs to be made here... this is an encyclopaedia article, not a guide to the safe use of Methadone or a manual on how to achieve stable levels of Methadone in the body. As such, a few brief statements on usual dosages employed in pain relief, and opioid replacement therapy, are all that should be included. 58.175.29.162 ( talk) 07:55, 22 October 2014 (UTC)
Near the beginning of this article the date of 1937 is given for when methadone was invented. At the beginning of the History section the date of 1939 is given. Can the correct date be established? ( 1Gyrfalcon ( talk) 23:21, 20 November 2010 (UTC))
The first paragraph under Withdrawal symptoms reads as follows:
At high maintenance doses, sudden cessation of therapy can result in withdrawal symptoms described as "the worst withdrawal imaginable," lasting from weeks to months.[33]
The cited reference ( http://www.heroinaddiction.com/heroin_methadone.html) does not include this quote. I suggest deleting the quotation or correcting the reference. —Preceding unsigned comment added by 130.154.0.250 ( talk) 22:51, 8 February 2011 (UTC)
As an individual taking 180mg per day I ran out of my prescription on a holiday weekend and had to to quit cold. I stretched out the pills I had left but came up short anyway and I made it 22 hours before "the worst pain imaginable" did occur. Shocks like electrical strikes spiked through my body causing spasms. I screamed out in this intense pain every few seconds for about a minute or less then the shocks would subside for a few minutes then return again after allowing me to catch my breath. Finally the pharmacy that had held my prescription over that weekend opened up for business and it was filled. My wife fed me 6 pills which i put under my tongue for quicker relief and allowed the pills to melt which, to me, is quicker than swallowing whole. — Preceding
unsigned comment added by
75.172.51.132 (
talk)
12:00, 16 May 2012 (UTC)
Isomethadone is redirected here. I've drawn isomethadone and put it in the commons if anybody cares to work out where to put it! The file name is Methadoneisomer.jpg. 2829 VC 20:56, 28 February 2011 (UTC)
In the text (under "Metabolism") the half life was listed as 15-60 hours with some references to values even outside of this range. Thus I edited the half life on the side of the page to also reflect 15-60 hours instead of 24-36 hours. People often use this data as a definitive value (for better or worse!) so it would make sense to give a more accurate value here. — Preceding unsigned comment added by 66.214.24.45 ( talk) 16:20, 28 November 2011 (UTC)
Joseph, R.; Moselhy, H.F. (2005). "National survey of methadone prescribing for maintenance treatment: 'opiophobia' among substance misuse services?". Psychiatric Bulletin 29 (12): 459–461. --- Someone cited the above article as saying that some patients are prescribed upto 750 mg per day of methadone. The article doesn't say that. I quote: "The maximum dose of methadone prescribed for maintenance ranged from 9 to 325 mg, with a mean of 116 mg. The minimum dose ranged from 1 to 70 mg. The mean daily dose for each centre was 47 mg (range 9-100)." Please be careful not to cite references incorrectly. When I saw "750 mg/day", it immediately struck me as an error and I looked up the paper and indeed found no mention of 750 mg/day. — Preceding unsigned comment added by 70.49.48.63 ( talk) 02:04, 10 March 2012 (UTC)
I do not believe it is an error as I know several pain patients that are on 650 mg or MORE a day and with opiates there is no real "ceiling dose" (the point at which the drug becomes toxic). The dosage depends on the needs of the patient as well as how opiate tolerant they are or are not. I will try to find a credible source when I have more time.
Zoongitozi (
talk)
04:39, 20 August 2013 (UTC)
Place holder for discussing the following:
"It can also be found in urine samples six to ten weeks after the last dose.[citation needed][dubious – discuss] It was generally thought it left the system 2–3 days after last use but this is not the case,[citation needed][dubious – discuss] many factors contribute to how long it will stay in the system. It depends an individual's body weight, metabolism, history of use/abuse and many more factors. In studies done on Methadone users going through detox, individuals experienced different withdrawal symptoms and withdrawal periods even though they received their last dose at the same time.[citation needed][dubious – discuss] When they gave blood and urine samples the methadone showed up in some individuals samples as much as four weeks after it was not evident in other individuals samples.[citation needed]" — Preceding unsigned comment added by 70.114.234.99 ( talk) 23:50, 27 June 2012 (UTC)
I do not believe it is an error as I know several pain patients that are on 650 mg a day, I will try to find a credible source when I have more time. Zoongitozi ( talk) 02:53, 1 April 2013 (UTC)
I removed the reference to Methadones supposed 'blocking effect' on the euphoric effects of other opiates. Methadone is a full mu-opoiod agonist, not an antagonist. so it does not have any 'blocking' effects like buprenorphine has. The reason people on MMT find it hard to get high is because of cross-tolerance, not because of some mechanism specific to methadone, — Preceding unsigned comment added by 87.210.93.31 ( talk) 21:36, 17 April 2013 (UTC)
I've been on methadone maintenance since the year 2000. Started at 20 mg, my highest dose was 70. Last year I started gradually reducing in order to get the fuck off of it already as I am becoming odler and older and it will be harder even more the longer I wait. So now I'm down to 24mg, been reducing a couple mg every couple months. So around 20mg it starts becoming uncomfortable and now I feel it. So say I finally reach 2mg then 0 mg - will I be having withdrawal symptoms? For how long? They say methadone withdrawal is hell on earth. I am afraid.
Sorry sweetie, but yes, even when you get down to 1 mg then to none you will still have some withdrawal symptoms. They will be markedly less than, say, quitting cold turkey from 50mg/day, but there really is no way to completely avoid withdrawal. (Unless you want to spend thousands to go down to Mexico for Ibogaine treatment, which is usually one or two days, and, reportedly, no withdrawal and, for most people, complete eradication of opiate cravings) Anyway, when your withdrawal begins, it will suck on day one, peak at day 3, then start to wane, (many people say the worst parts of methadone withdrawal are the inability to sleep, the hot flashes, and, the worst: the Restless Leg Syndrome) but it can take days, to, weeks, to even months to feel "completely normal." Most people have the most issues with sleep, sometimes for up to a year after their last dose. i.e. That consistent sleep is difficult, and fitful.
Some people have found withdrawal symptom relief by taking doses of Imodium (loperamide), and while it DOES help curb the withdrawal, it only does so because it, too, is an opiate. When you take it, after it wears off, you are starting your withdrawal all over again from step 1...and because Imodium/loperamide is OTC, many withdrawal-ing individuals will take it for relief, and continue to do so, now causing them to be physically addicted (loperamide does not cause a "high") to the Imodium. i.e. If they stop taking it at regular intervals, withdrawal begins...if they take it again, it goes away...so begins a vicious cycle.
I'd advise you to give yourself a week at home after your last dose (working/activities/responsibilities may prove difficult after day 2-6) and try Tylenol or Motrin for pain. Some people use diphenhydramine (Benadryl) for help with sleep, but some say it made Restless Leg Syndrome worse. Some try to get benzodiazepines, either by Rx or illegally, to help "take the edge off" and, while benzos can be effective during withdrawal, it is also very easy to use them as a "crutch" and quickly become addicted to the Benzos (NOTE: benzo withdrawal is notoriously awful, worse than any opiate withdrawal -even methadone- has more incidences of psychiatric issues during withdrawal, and can be fatal...so if you go the benzo-route BE CAREFUL! Try not to get frustrated with the no-sleep issues...and fear will only make your symptoms seem worse. Keep telling yourself, after day 3, that it can only get better...good luck — Preceding unsigned comment added by MandyHarenza ( talk • contribs) 15:16, 16 January 2014 (UTC)
Hello I had been taking methedone for 3 years for pain. For 3 months I took 5-10mg a day to ween off. Now I have been totally off for a week now and the worst withdrawals are pain and anxiousness in my legs which is very annoying and uncomfortable and affects my daily life. How long will this last and will the withdrawal symptoms get worse? ZGoing back on the meds is not an option. Neither is saboxyn or anything of the nature. I really want these meds out of my system. How long will I have to deal with these withdrawals?? I thought I weened off the right way — Preceding unsigned comment added by 71.168.105.15 ( talk) 13:59, 22 April 2013 (UTC)
Hi, diacetylmorphine, oxycodone, and other similar opioid addictions often use methadone for withdrawals, and switch an addiction from heroin to methadone. As it's been shown in studies (Please don't make me reference them) that methadone withdrawal can be much more severe, dependence liability should be just as high as other highly addictive opioids/opiates. — Preceding unsigned comment added by 108.169.0.79 ( talk) 10:45, 29 May 2013 (UTC)
It is not used recreationally often, my friend, but although it's main use is medical (and it's handed out at clinics), I've met a lot of people who are severely addicted to methadone, whereas they were previously addicted to heroin. I realize "people I know" isn't necessarily a good reference, I can provide a better one if need be.. but there is a vast palette of nasty withdrawal symptoms, and who's to say you can't become dependent to medicine? If the dependence liability for ketamine is "medium" and the withdrawal symptoms aren't nearly as severe, this page should be equivalent. — Preceding unsigned comment added by 108.169.0.79 ( talk) 18:59, 30 May 2013 (UTC)
Ah, yes, but you're aware that methadone has quite an increased potency compared to weaker opioids i.e. hydrocodone, even if it has more action at kappa receptors. I think the fact alone that it is schedule II in the US, and the definition of Schedule II drugs is "high abuse liability but accepted medical use" should be sufficient. http://www.acnp.org/g4/GN401000168/CH164.html section:Acute Physical Dependence compares the dependence liability to morphine by mapping mu and k opioid antagonist action. I think.. Look. It's a very potent drug, 2 10mg tablets have killed a girl. It can be euphoric, and if you take it with other drugs such as hydrocodone, you can have a severe (and I mean SEVERE) reaction to combining the drugs after the effects wear off. This happens often. You can puke every 5 to 10 minutes, turn whitish yellow, shake, itch.. For at least 24 hours. It's as easily abused as other opiates. It can't have a "low" abuse potential. Not possible. Tylenol has a low abuse potential.
The "Other uses" section requires various corrections--primarily in grammar, spacing, capitalization, and punctuation. I have provided a suggested edit:
Methadone linctus, which is prescribed in 1 mg/2.5 mL concentration, is used (where approved) as a remedy for violent coughing. It is also a potential new therapy for leukemia--especially in patients whose cancer is non-responsive to chemotherapy and radiation.[28]
The chemical synthesis of methadone begins with the alkylation of a diphenylacetonitrile anion (which is produced via reaction of a strong base with diphenylacetonitrile) by 1-dimethylamino-2-chloropropane. This produces a 1:1 mixture of isomeric nitriles: high-melting 2,2-diphenyl-4-dimethylaminovabrionitrile, and low-melting 2,2-diphenyl-3-methyl-4-dimethylaminobutyronitrile. Reaction between the high-melting nitrile and ethyl magnesium bromide, and a subsequent hydrolysis, yields methadone. — Preceding
unsigned comment added by
69.180.236.107 (
talk)
05:23, 30 May 2013 (UTC)
![]() | This help request has been answered. If you need more help, you can , contact the responding user(s) directly on their user talk page, or consider visiting the Teahouse. |
I got the "Articles you might like to edit, from SuggestBot" and it had this article on it but no "x" in any of the boxes and no box stating any needs or edit suggestions such as sources needed etc., so am just curious if there was a need and is no longer or if i just get that suggestion because it is a topic i have been interested in when editing in the past? TattØØd Ẅaitre§
...Even if it were not an advertisement, this arcane info does not belong in the Lead. See also: Wikipedia:Manual of Style (lead section)...and it's too technical for the Lead which must be understandable to overworked Joe Boobtube. Here is the ad:
Covidien (formerly Mallinckrodt), is the major racemic methadone producer and sells bulk methadone to producers of generic preparations and distributes its own product in the form of tablets, dispersible tablets and oral concentrate under the brand name Methadose in the United States. [1]
-- 69.110.90.54 ( talk) 18:53, 4 August 2013 (UTC)Doug Bashford
I'm not sure about the long list of side effects as it stands. Some of the listed effects are not common, in fact the very first item listed is "Thrombus", is not common and probably is of no concern for most patients or clinicians. Taking the article on Lithium (medication) as an example, I think more explanation is needed for the side effects section - for instance mentioning that some of the serious effects mentioned such as seizures are rare. I think overall, this article gives an unbalanced, negative view of methadone. It gives long lists of side-effects and withdrawal symptoms without adequate discussion of the role it can play in reducing heroin/other opioid use (a mere one sentence). I have never really contributed to a Wikipedia article - maybe I need to learn how to make some changes to this one. 59.167.255.139 ( talk) 03:59, 4 September 2013 (UTC)
I think we should add the following section under Pharmacology given the increased desire for knowledge of pharmacogenomics purposes. Researchers, clinicians, and patients can find this information useful.
A significant association exists between the variants of the CYP2B6 gene, and increased methadone concentrations in the blood, where methadone toxicity was determined to be the cause of death. The *4, *9, and *6 variants are implicated. [2]
i believe australia now (2014)only has 10mg tablets — Preceding unsigned comment added by 101.113.71.163 ( talk) 06:55, 27 February 2014 (UTC)
Acyclic analog ==
What does this actually mean? It's fairly early on in the text, with no explanation, and subsequent googling reveals little. Yet, apparently, methadone works because "it is an acyclic analog of morphine or heroin." An immediate question that springs to mind is, 'Is the fact it's acyclic important, or are there analogs that are the opposite of acyclic?' — Preceding unsigned comment added by Mandybrigwell ( talk • contribs) 00:29, 27 July 2014 (UTC) Encyclopaedic articles are rarely fully self contained; almost all will contain terms that are not defined or explained in the article. A certain level of knowledge MUST be assumed, or all articles would be so long that they would take years to read. E.g. The article for the colour blue mentions wavelength, the fact that it is a spectrum colour, the black body temperature that it corresponds to, the energy in electron volts carried by a photon of blue light, and other things that only people with a fair knowledge of physics will truly understand. The term "acyclic analog" requires a fair knowledge of chemistry to understand it. It is a full description of the relationship of the methadone molecule to the morphine molecule. 58.175.29.162 ( talk) 09:01, 22 October 2014 (UTC)
Acyclic analog ==
What does this actually mean? It's fairly early on in the text, with no explanation, and subsequent googling reveals little. Yet, apparently, methadone works because "it is an acyclic analog of morphine or heroin." An immediate question that springs to mind is, 'Is the fact it's acyclic important, or are there analogs that are the opposite of acyclic?' — Preceding unsigned comment added by Mandybrigwell ( talk • contribs) 00:29, 27 July 2014 (UTC) Encyclopaedic articles are rarely fully self contained; almost all will contain terms that are not defined or explained in the article. A certain level of knowledge MUST be assumed, or all articles would be so long that they would take years to read. E.g. The article for the colour blue mentions wavelength, the fact that it is a spectrum colour, the black body temperature that it corresponds to, the energy in electron volts carried by a photon of blue light, and other things that only people with a fair knowledge of physics will truly understand. The term "acyclic analog" requires a fair knowledge of chemistry to understand it. It is a full description of the relationship of the methadone molecule to the morphine molecule. 58.175.29.162 ( talk) 09:06, 22 October 2014 (UTC)
In Equianalgesic article there's this line with no source cited "Methadone is different from most opioids considering its potency can vary depending on how long it is taken. Acute use; 1–3 days, yields a potency about 4× stronger than that of morphine and chronic use (7 days+) yields a potency about 7–8× that of morphine due to methadone being stored in fat tissue, thus giving higher serum levels with longer use." is this true and is it explained in some other way in this article?-- Custoo ( talk) 23:39, 23 November 2014 (UTC)
I thought it was a brand of the levo isomer specifically and the "L-" in the brand name list at the levomethadone page was a redundancy (like the some certain odd article that has "HCl" in the page title) but I'm wanting someone to confirm please. 18:57, 24 October 2015 (UTC)
The following is unsourced; moved here til it can be sourced. It was also added to a section on drugs used in treatment of addicts, and doesn't belong there.
There are two methadone isomers that form the racemic mixture which is more common as it is cheaper to produce. The laevorotary isomer, which is isolated by several recrystalisations from racemic methadone, is more expensive to produce than the racemate. It is more potent at the opioid receptor than the racemic mixture and is marketed especially in continental Europe as an analgesic under the trade names Levo-Polamidone, Polamidone, Heptanone, Heptadone, Heptadon and others. It is used as the hydrochloride salt almost exclusively with some uncommon pharmaceuticals and research subjects consisting of the tartrate. The dextrorotary isomer d-methadone is not commercially available. It is devoid of opioid activity and it acts as an NMDA antagonist. It has been shown to be analgesic in experimental models of chronic pain.
- Jytdog ( talk) 23:25, 3 April 2016 (UTC)
Where is information about methadone's Mechanism of action? General NMDA antagonist information and it's antiaddictive properties don't belong here. Even if methadone has some NMDA antagonist activity it surely doesn't dictate the effects nor is there addiction reduction. This should be talking about the mechanism of action of methadone like opioid activity and some mention of its NMDA antagonist activity as well. Five- ( talk) 16:21, 8 April 2016 (UTC)
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The chemical half life does not reflect the duration of desired effect. [1] Have moved the chemical half life to the body. Doc James ( talk · contribs · email) 22:28, 31 March 2018 (UTC)
Hi everyone, I (Carolyn Tang) along with 4 others (Tiffany Guan, Jasper Hai, Emily Hsu, and Justin Sims), will be revising different sections of this article in the next several weeks. Our goals are to restructure the content of this article to make it more concise and to expand on concepts regarding the societal and cultural aspects of methadone maintenance treatment. Specifically under the "Society and culture" section, we plan to move the "Medication" portion to the top of the "Cost" sub-header. Additional information will be provided under the "Methadone maintenance treatment" section to expand on how methadone clinics are compensated in the US, e.g. VA Medical Centers. We will discuss AB 1963, a bill proposing the need to increase Medi-Cal provider reimbursement rates for opioid addiction treatment. We also plan to add a new "Health policy" sub-header under "Society & culture". Other revisions include moving the "Brand names" sections to a more appropriate section of this article and expanding on the "trade names" section in the right column at the top of the page. The aforementioned information will be gathered from guidelines and journal reviews. We welcome any feedback and suggestions you have! Carolyntang1 ( talk) 03:59, 17 October 2018 (UTC)
1. Does the draft submission reflect a neutral point of view? If not, specify.
All of the added content is very neutral. The edits add appropriate information about the indications that allow coverage for methadone as well as the level of coverage for certain insurances. There is no added commentary to this information and it is very factual. Kwong89 ( talk) 00:46, 8 November 2018 (UTC)Kwong89
2. Are the points included verifiable with cited secondary sources that are freely available? If not, specify.
No citation for the black box warning. The VA and MMT citations are accessible secondary sources. — Preceding unsigned comment added by Pzrx ( talk • contribs) 04:21, 8 November 2018 (UTC)
Asides the above mentioned citation, the majority of the cites used were from credible government sites like drugabuse.gov, WHO, and the VA gov site. These are readily accessible to the public to access as well. — Preceding unsigned comment added by Saellee ( talk • contribs) 18:15, 8 November 2018 (UTC) Saellee ( talk) 18:51, 8 November 2018 (UTC)
3. Are the edits formatted consistent with Wikipedia’s manual of style? If not, specify. I believe the contributions this group made do follow the Wikipedia's manual of style. The manual emphasizes the use of simple language that can be understood by the general public and proper formatting. This group accurately followed the formatting style, except for some citations found before punctuation marks. Citations should immediately follow the text to which the footnote applies, with no intervening space. It should also go after punctuation if applicable. Most of the article is in language that is easy to understand. The only section that may lead to confusion is the "Regulation" section under "Society and culture." It may be beneficial to clarify what an ACSCN number is and to use Gennadiy Onishchenko's full title of Chief Sanitary Inspector of Russia. I like that they compared regulation in different countries and did not only include regulation in the US. Tarynng5 ( talk) 17:59, 8 November 2018 (UTC)
4. Is there any evidence of plagiarism or copyright violation? If yes, specify. I think the contributions made by this group are within the bounds of proper plagiarism guidelines and do not violate any copyright that I can see. The sources added are properly cited and seem to be well placed/properly placed. MichelleBretschneider ( talk) 02:09, 10 November 2018 (UTC)
1. Does the draft submission reflect a neutral point of view? If not, specify… The edits provided good background information on methadone coverage under medicare and indications for coverage. An example of a state's coverage and contingencies was also provided with no personal opinion to it. Treatment method, practice requirements, and cost of services were also provided in a factual format. Much of the edits focused on sources which improved the quality of the paper. Ssrashidi ( talk) 17:46, 8 November 2018 (UTC)
2. Are the points included verifiable with cited secondary sources that are freely available? If not, specify. The Black Box Warning citation is to Epocrates. It is not an easily accessible source due to needing a subscription before viewing. The rest of the sources look good. -- Jtruong93 ( talk) 17:38, 8 November 2018 (UTC)
3. Are the edits formatted consistent with Wikipedia’s manual of style? If not, specify… Edits are good, with the exception of some citations that are added to the wrong place. Citations should always go after punctuation, not in the middle of the sentence. One example is
“Methadone pills often contain talc[56][57] that, when injected, produces a swarm of tiny solid particles in the blood, causing numerous minor blood clots.”
Also it would be a good idea to go through the entire article and find run on sentences, or sentences that are incomplete. One example is
“…by means of suppressing drug cravings and the discovery in the early 1950s.[70] of methadone's antitussive properties first tested in dogs in Europe in 1952-1955 with different inert placebos, active placebos like codeine.[71]”
CarolinaRyklansky ( talk) 17:55, 8 November 2018 (UTC)
4. Is there any evidence of plagiarism or copyright violation? If yes, specify. After an extensive review of the information added and the sources, there does not appear to be any evidence of plagiarism or copyright issues. Information were phrase in their own words and properly cited. An online plagiarism checker was also used and no plagiarism was reported. -- Andy M Nguyen ( talk) 04:46, 10 November 2018 (UTC)
The article currently has no information about the drug's use in canine / feline analgesia. According to this reference, its use is common, at least in the UK. I'm nowhere near an expert in this field, but hopefully someone with pharmacological or vetinary knowledge can add a paragraph. ~dom Kaos~ ( talk) 19:56, 19 July 2020 (UTC)
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