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."