Cluster Headaches
"I&#039;m on my 3rd recurrence of cluster headaches, and this time I managed to get to the doctor and renew my verapamil prescription right away, after my first attack, and it&#039;s worked immediately, I&#039;m a solid week in now and have not gotten another attack, I&#039;m on 80mg 3x per day.  It&#039;s worked well for me during past episodes, but I was really surprised that it controlled this recurrence so immediately."