问题
单项选择题
Opiate withdrawal causes severe physical discomfort and can be life-threatening. To minimize these effects, opiate users are commonly detoxified with which drug
A．Barbiturates.
B．Amphetamines.
C．Methadone.
D．Benzodiazepines.
答案
参考答案：C
解析：Methadone is used to detoxify opiate users because it binds with opioid receptors at many sites in the central nervous system but doesn't have the same deleterious effects as other opiates, such as cocaine, heroin, and morphine. Barbiturates, amphetamines, and benzodiazepines are highly addictive and would require detoxification treatment.