diacetylmorphine

The Canadian researchers randomly assigned about half of the addicts to receive methadone and the other half to receive daily injections of diacetylmorphine, the active ingredient in heroin.

加拿大研究者对【将】受验者随机分组，一半接受美沙酮治疗，另一半每天接受注射二酰啡，要成分是海洛【为海洛要成分】。