Long-acting opioid: Methadone is a long-acting opioid. Generally speaking, within any particular class of addictive drugs, the quicker the peak effect, and the shorter the duration of effect, the more addictive a drug will be. Because opioid-addiction can be tough to quit, Methadone - a long-acting opioid with a slow peak of action - can be used to replace the addictive opioid while one works on recovery.
Answered 1/29/2020
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