methadone美沙酮、美散痛美散痛(鎮痛藥)學術名詞美沙酮:心理學、化學工程、新聞傳播學、藥學美沙冬:新聞傳播學持殺酮:獸醫學英文釋義synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction