User Reviews for Calan SR

Calan SR (verapamil) for Migraine Prevention: From 1965 through 1992 I suffered from what a doctor called Migraine Headaches. I endured the sporadic episodes until they became longer in duration and more often. The constant nausea was worse than the headache itself, causing me to go to bed until the event would suddenly subside. Went to a doctor again around 1992 and was prescribed Calan SR. I took it until the prescription ran out ... and did not have any headaches during that time ... but then I did not renew my prescription and stopped taking it all together. However, I have never had a migraine again nor any type of headache at all since around 1992 to this day 2010 - that is approximately 16 years without even a headache. I consider this a miracle.

Calan SR (verapamil) for Supraventricular Tachycardia: I have been taking CALAN SR 120 for over 10 years now. My episodes of SVT occur at most a couple of times a year and then for short duration. My pharmacy issued me a generic once because CALAN was not available and I had SVTs almost daily. I was very glad when CALAN became available again. I would not like to be without it.

Calan SR (verapamil) for Cluster Headaches: Calan SR worked miracles for me. It doesn't stop the headaches; over a short period of time the drug builds up in your system and then you can feel an attack coming on (the eye starting to droop and some nasal congestion), then, viola, the headache is aborted!

Calan SR (verapamil) for Migraine Prevention: Works very well for migraines and heart rhythm problems

Calan SR (verapamil) for Supraventricular Tachycardia: I used Verapamil for 5 years to treat supraventricular tachycardia (SVT). With each visit to the doctor, they increased my dosage. I started out taking 30mg once a day, and ended with 180mg once a day. For the most part, my symptoms were never controlled. The drug caused extreme fatigue and tiredness. I often had severe headaches and was constipated. I have been switched to Atenolol 50mg once a day now. Hopefully I won't have as many unwanted side effects.