内服药英语短语怎么说

内服药的英语短语是 "oral medication"。这是指通过口服的方式使用的药物。例如：

I have to take my oral medication twice a day, in the morning and at night.
The doctor prescribed an oral medication for my headache.

其他常见的内服药英语短语还包括：

oral pill: 口服药片
oral syrup: 口服糖浆
oral capsule: 口服胶囊

例如：

The pharmacist gave me a bottle of oral syrup for my cough.
I prefer taking oral capsules instead of pills because they are easier to swallow.