Translation of "Pills" in Chinese

I need sleeping pills.

我需要安眠藥。

- The tablets took away my pain.
- The pain went away because I took the pills.
- Because of the pills I took, the pain went away.

药片止住了我的疼痛。

Before going to bed, I took three pills to stop a cold.

睡覺前我吃了三片藥來治療感冒。

The patient felt none the better for having taken the new pills.

病人吃了新药后没觉得好些了。