Cluster Headache; Headaches; Tension Headache 

Calan; Isoptin 

A headache is a condition of mild to severe pain in the head; sometimes upper back or neck pain may also be interpreted as a headache.

Verapamil is a medical drug that acts as a calcium channel blocker. It is used in the treatment of hypertension, angina pectoris, and some types of arrhythmia.

Headache as related to Verapamil