94 patients meeting criteria for insomnia were randomly assigned into zopiclone group and alprazolam group,treated for 4 weeks.

对94例失眠症患者,随机分为佐匹克隆组和阿普唑仑组。疗程4周。

Subjects were randomly enrolled into three groups: risperidone group, combination of risperidone and benzhexol group and combination of risperdone and alprazolam group.

受试患者随机进入3组：单用利培酮组，利培酮+安坦组，利培酮+阿普唑仑组。

"Mr.Heath Ledger died as the result of acute intoxication by the combined effects of oxycodone, hydrocodone, diazepam, temazepam, alprazolam, and doxylamine," the office said in a short statement.

主要意思是已经定论根据特征判断死亡是意外，由于处方药引起混合效应中毒。