I had many side effects from Metoprolol and whenever I would call the cardiologist's office I would get the same answer…..the benefits outweigh the side effects. Besides the metoprolol causing a very low pressure he also had me on Xarelto , that was just as bad for me and I still had the same answer, the benefits outweigh the side effects without even trying a different dosage or med. I was also on aspirin. . One of my many complaints over a nine month period was every night I had gums bleeding and averaged 2 to 4 hours sleep.I asked him how can I heal when my body is not getting rest ? I went to a new cardiologist he changed the blood thinner to Eliquis and changed the Metoprolol to hydrochlorazide 12.5 mg.once a day. I sleep longer and no gum bleeding ! I am also off of aspirin . I do have AFIB but we are going to wait and see how that goes. I love my new cardio doc and very disappointed at myself for waiting so long to seek another opinion. Never had any real health problems until I had the open heart surgery….now I have severe fibromyalgia and on medical cannabis. I suggest anyone that has any issue with any med that gives you bad side effects to contact your doctor or seek another opinion.