止咳糖浆是一种内服药。

Cough mixture is an internal medicine.

这是内服药。每次两片，一天四次。

This is for internal use. Two tablets, four times a day.

医生给那个生病的男孩一些内服药。

The doctor gave the sick boy some medicine.

健胃剂，开胃剂：一种化学药剂，如内服药，能够加强胃功能或促进胃消化。

An agent, such as a medicine, that strengthens or stimulates the stomach.