Methadone is available as a tablet, disc, oral solution, or injectable liquid. Tablets are available in 5 mg and 10 mg formulations. As of January 1, 2008, manufacturers of methadone hydrochloride tablets 40 mg (dispersible) have voluntarily agreed to restrict distribution of this formulation to only those facilities authorized for detoxification and maintenance treatment of opioid addiction, and hospitals. Manufacturers will instruct their wholesale distributors to discontinue supplying this formulation to any facility not meeting the above criteria.
Methods of Abuse
Methodone can be swallowed or injected.
Effect on mind
Abuse of methadone can lead to psychological dependence.
Effect on body
When an individual uses methadone, he/she may experience physical symptoms like sweating, itchy skin, or sleepiness. Individuals who abuse methadone risk becoming tolerant of and physically dependent on the drug. When use is stopped, individuals may experience withdrawal symptoms including: anxiety, muscle tremors, nausea, diarrhea, vomiting, and abdominal cramps.
Drugs causing similar effects
Although chemically unlike morphine or heroin, methadone produces many of the same effects.
The effects of a methadone overdose are: slow and shallow breathing, blue fingernails and lips, stomach spasms, clammy skin, convulsions, weak pulse, coma, and possible death.