Question

which of the following is a side effect of beta blockers?
edema
bradycardia
headache
weight gain

Explanation:

Beta - blockers slow the heart rate. Bradycardia is a condition of slow heart rate. Edema is more commonly associated with other classes of drugs like calcium - channel blockers in some cases. Headache and weight gain are not typical primary side - effects of beta - blockers.

Answer:

Bradycardia