She took a sleeping pill last night.

她昨晚吃了一颗安眠药。

She must of slipped me a sleeping pill

她用一片安眠药打发了我

Perhaps you had batter take a sleeping pill!

也许你最好吃一粒安眠药！

And you would not feel the need to take a sleeping pill.

并且你认为没有必要去服安眠药

Never, under any circumstances, take a sleeping pill and a laxative at the same time.

在任何情况下，都不要把安眠药和泻药放在一块吃。

N: I'll go and get you some cough mixture(a sleeping pill, a laxative, a tranquilizer, a pain-killer).

我去给你拿点咳嗽药（安眠药，泻药，安定药，止疼药）来。

I took a sleeping pill the night before to get a good sleep in for work, but it turns out it was too strong.

我昨天晚上吃了一片安眠药，为了是睡个好觉今天好精神百倍地工作。