@jadillow that doesn't mean the drug is not causing the bradycardia. Maybe it isn't but it is surely a top reason. Our bodies change - weight loss, age. We take other medications or formulations of drugs may change slightly.. Because you took the drug for years doesn't mean it isn't causing the problem now. There are a host of medications you can take for hypertension if lisinopril is causing the problem. The fact your doctor has not discussed drug side effects is appalling to me. But patients also tend to not want to ask too many questions, I find. To not ask questions is too often to do so at your peril. I cannot diagnose you but I have little doubt as to the cause of your problem. My advice is to find a cardiologist who will consider the drug connection. I will not be commenting further but leave you with this link FYI> Interesting case study from Emory re: bradycardia in woman taking your medications. Case Presentation:A 42‐year‐old white woman with a past medical history of hypertension was referred to cardiology for symptomatic bradyarrhythmia. https://www.shmabstracts.com/abstract/a-case-of-symptomatic-bradycardia-from-amlodipine/

Is it possible your slower heart rate is unrelated to med you haven taken for years? Sometimes meds will uncover changing conditions with our hearts. My case....taking an anti arrhythmia drug uncovered sinus node dysfunction. It causes brachycardia. Verdict is out still w cardiologists whether it causes aFib or aFib causes sinus node dysfunction. Finally, after experiencing rates in the 40’s and 50’s, I agreed to a pacemaker recommended by my Mayo Clinic EP cardiologist.( he had been telling me for 4 yrs I needed PM). Boy, do I feel better. No pauses or slow rates. I take Sotalol to minimize aFib which causes very slow bpm). My PM is set at 60 bmp on low end - 130 bmp high end to allow for exercise. Hope this helps. A 14 day event monitor will give your Dr info he needs.