By opioid addicts for methadone maintenance therapy to reduce the abuse of opiate addiction caused by the disease, death and crime, a decrease of HIV in drug users in the spread.

• 通过对阿片类物质成瘾者进行美沙酮维持治疗，减少了滥用阿片类物质成瘾引起的疾病、死亡和犯罪，也减少了艾滋病病毒在吸毒人群中的传播。