A benzodiazepine drug, C16H14ClN3O, whose hydrochloride is used as an antianxiety drug and in the treatment of chronic alcoholism and alcohol withdrawal.

• 甲氨二氮?，利眠宁一种苯二氮?镇静药，C16H14ClN3O，其氢氯化物成分用作抗忧虑剂，并可用作慢性酒精中毒的治疗和戒酒