http://www.medications.com/se/Calan Recent side effects for Calan Tue, 26 Apr 2005 09:04:22 -0400 http://www.medications.com/effect/view/8735 Good grief! All I'm looking for is something on Calan /Verapamil causing gum tenderness so I can explain to my dentist that my gums may be tender because of the medication since he doesn't have an explaination for the problem. It's just one of those thing http://www.medications.com/effect/view/8735