A patient who must take verapamil for hypertension and angina has become severely constipated. Which of the following drugs would be most suitable as a cathartic? (LQ)
A cathartic that mildly stimulates the gut would be most suitable in a patient taking a smooth muscle relaxant drug such as verapamil. Magnesium hydroxide, by holding water in the intestine, provides additional bulk and stimulates increased contractions.