A member asked:

Can you tell me if methadone comes up as an opiate on drug screens?

A doctor has provided 1 answer

No: An "opiate," by definition, is chemically derived from the opium plant, like morphine and codeine. Methadone is a synthetic chemically unrelated to opiates, but acts at the same receptors - hence, it is called an "opioid." - latin for "like an opiate." Demerol, (meperidine hydrochloride) fentanyl, Darvon and other opioids are also synthetic drugs. Oxycodone, hydromorphone and others are semi-synthetic opiates.

Answered 6/28/2014

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