A narcotic drug,C18H21NO3,derived from morphine and used in the form of its hydrochloride as an analgesic.

 
  • 麦托朋,甲基二氢吗啡酮一种麻醉药,C18H21NO3,由吗啡衍生而来,以其氢氯化物形式用作镇痛药
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