Methadone
Methadone is a synthetic opioid .[ 1] It is used as an analgesic and in opioid withdrawal therapy. It has the benefit over other drugs that can help with coming off of opioids in that the user can go straight to methadone at a low dose and have it raised to a level where it works for them.
Besides relieving pain, it is also used to treat addiction to opioid narcotics , and some illegal drugs [ 2] like heroin or codeine mostly. Methadone can lead to adverse effects like memory loss , shortness of breath , throat pains, stomach aches , and anxiety attacks. The benefit of using methadone for pain however is how well most people tolerate it and its low potential for abuse or addiction over other opioids.
The main drawbacks of using methadone are the social stigma attached, the location of methadone clinics and the opportunities to sell the methadone to other addicts in order to pay for the drug they are addicted to. However, unlike for example with subutex, the person taking methadone does not have to stop taking opioids for a few days before they are able to get treatment, though with those drugs they may still have to come clean off methadone (which may be a lot easier for them).
In using methadone to come off of opioids, the dose starts low and is titrated up to a dose that works over the course of some weeks to a month (sometimes up to 3 months). From there, the user might stay on methadone for 5 to 10 years until they finally start to lower the dose and stop taking opioids altogether, though some people stay on it for life.
References
Cough and cold preparations (R05)
Expectorants
Potassium iodide
Althea root
Antimony pentasulfide
Creosote
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Levoverbenone
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TH-030418
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U-50488
U-54,494A
U-69,593
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5'-GNTI
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6β-Naltrexol
6β-Naltrexol-d4
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AT-076
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BU09059
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CERC-501 (LY-2456302)
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CVL-354
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DIPPA
EGC
ECG
Epicatechin
Hyperoside
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LY-255582
LY-2196044
LY-2444296
LY-2459989
LY-2795050
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ML190
ML350
MR-2266
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Noribogaine
Pawhuskin A
PF-4455242
RB-64
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Taxifolin
UPHIT
Zyklophin
Unknown/unsorted: Akuammicine
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Coronaridine
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Tabernanthine
NOP
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((pF)Phe4 )Nociceptin(1-13)NH2
(Phe1 Ψ(CH2 -NH)Gly2 )Nociceptin(1-13)NH2
Ac-RYYRWK-NH2
Ac-RYYRIK-NH2
BU08070
Buprenorphine
Cebranopadol
Dihydroetorphine
Etorphine
JNJ-19385899
Levomethorphan
Levorphanol
Lexanopadol
MCOPPB
MT-7716
NNC 63-0532
Nociceptin (orphanin FQ)
Nociceptin (1-11)
Nociceptin (1-13)NH2
Norbuprenorphine
Racemethorphan
Racemorphan
Ro64-6198
Ro65-6570
SCH-221510
SCH-486757
SR-8993
SR-16435
Sunobinop (S-117957)
TH-030418
Antagonists: (Nphe1 )Nociceptin(1-13)NH2
AT-076
BAN-ORL-24
BTRX-246040 (LY-2940094)
J-113,397
JTC-801
NalBzOH
Nociceptin (1-7)
Nocistatin
SB-612,111
SR-16430
Thienorphine
Trap-101
UFP-101
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Cytochrophin-4
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NEM
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D -Phenylalanine
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RB-101
RB-120
RB-3007
Opiorphan
Selank
Semax
Spinorphin
Thiorphan
Tynorphin
Ubenimex (bestatin)
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Prodynorphin
Proenkephalin
Pronociceptin
Proopiomelanocortin (POMC)
Others: Kyotorphin (met-enkephalin releaser/degradation stabilizer)