I am on verapamil 400 er capsules 400 mg and 20 mg of benicar. I started getting this shortness of breath about 4 weeks ago. My dr. has no clue what is causing it, and she along with the pharmacy say that both meds do not cause this or the cough that I have developed with the shortness of breath. Still waiting results from an echo I had done to see what is going on the with mitral valve other than that I am clueless about the shortness of breath. I do not smoke and only weigh 130 so the weight is not an issue.