on an empty stomach

基本解释

Some other drugs have to be taken on an empty stomach.
而其他某些药物，必须在空腹服用。
It is best absorbed with carbohydrates, or on an empty stomach.
它在空腹时，或和碳水化合物一起时吸收最好。
If you need iron supplements take them on an empty stomach before bed rather than with meals or other mineral supplements to ensure you absorb as much as you need without compromising other nutrients.
如果你需要补充铁，在睡觉前空腹服用它们，而不要在吃饱后或与其它矿物补充品一同服用，以确保你尽可能多的吸收而不是被其它营养品分解或中和。

It's a guarantee no one will be drinking on an empty stomach.
FORBES
And while I have long since forgotten how to solve a differential equation, I did learn how to drink responsibly (no tequila shots on an empty stomach).
FORBES: Grownup Training
The new drug, from Ironwood Pharmaceuticals, and to be marketed in the US by Forest Laboratories, is a capsule to be take once daily on an empty stomach.
FORBES: FDA Approves New Drug For Irritable Bowel Disorder (Update)