Good grief! All I'm looking for is something on Calan /Verapamil ...

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 things I'm not complianing about anything ,but this site seems to act as thought one wants to sue or something ! I've been taking this medication for years and have no complaints I just want to know from another source if it's possibly the cause. As the info I get from the pharmacy states it can cause this problem. Can someone varify this??? LLE