... is strenuous exercise then dangerous to takers of felodipine? I had a functional capacity evaluation done and the Physical Therapist reported that my heart rate did not increase to expected maximum during exercises, and that was not consistent with maximum effort or pain. I did give maximum effort and do have chronic pain stemming from documented spinal injuries. I take felodipine for hypertension and have read that it is a calcium channel blocker and suppresses heart rate and blood pressure. Also, I have had unexplained feet and ankles swelling for about a year. Could this be related to felodipine? Tests show I do not have peripheral vasular disease nor blood clots nor any mass that could be pressing on a nerve which goes to the feet. Appreciate any imput...