The results showed that it was most effetive in controlling the symptoms of the mild heroin addictive group. No Bup precipitated symptoms occurred and the OWS scores dropped drastically. Relapses after drug withdrawal were infrequent and mild.

• 结果表明：对轻度患者组控制症状最彻底，治疗开始3d无催瘾反应产生，OWS总分呈直线下降，全程戒断症状轻微且波动小，OWS总分平稳下降，减药顺利，停药后症状反复小，中度患者组次之。