A drug that is an ANTAGONIST to narcotic substances (see NARCOTICS). Given orally, it is used in the maintenance treatment of HEROIN – and other opiate-dependent people.
n. an opioid antagonist drug that is used to prevent relapse in formerly heroin- and other opioid-dependent patients. Possible side-effects include abdominal cramps, nausea and vomiting, sleep difficulties, and dizziness.
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