It is important to take all doses on time to keep the amount of medicine in your body at a constant level.

Antibiotics work best when the amount of medicine in your body is kept at a constant level.

Compared to men who have always been at a constant high level of employment rates, women are now increasing their numbers in the economy.

This means that there is a constant level of high humidity throughout the year.

"There has been a constant level of impatience," she said.

However, the lakes stay at a constant level most of the year.

This drug works best when the amount of medicine in your body is kept at a constant level.

It makes you tired because a constant level of pain is wearing.

To help you remember and to keep the drug at a constant level, take it at the same times every day.

To help you remember and to keep a constant level, take it at the same time(s) each day.