Hi, Thanks for writing to Health Care Magic, I am Dr Asad Riaz, I have closely read your question and I understand your concerns, I will hereby guide you regarding your health related problem. Every drug has side effects but only approved by FDA when these drugs have more benefits then side effects like having side effects with very little ratio n not every patient have side effects neigther have same side effect to all of them, mean some have diff effect of same drug with some have diff.. amlopin having amlodipine is calcium Chanel blocker that lead to vasodilation n result Dec BP , it can have side effects like fatigue, headache , flushing , palpitation,limb swelling,stomach upset etc... If u were my patient I would like to make BP charting n bring it to me so I can adjust dose or add on therapy to make sure ur mothers BP is in control range .. I hope this answered your question, if you have more feel free to ask. Regards. Dr.Asad Riaz. General and Family Physician..