Im on a 80mg/day coreg right now, thats a beta blocker as well as lisinopril. Before I had my heart attack I was just taking the ARB Benicar and that was great. Only reason im taking the beta blocker is because I suffered the heart attack and my heart is functioning at about 50% of what it should be. I was getting terrible arrythmias, one so bad that my heart almost stopped and they had to shock me with a defibrillator 2x. After starting up the beta blockers I rarely get an arythmia. They are good for that purpose too. I dont see why she prescribed a beta blocker, but maybe she knows something that we dont.
Coreg is a betablocker but it also happens to be a wonder drug for those individuals with lowered ejection fractions. The average increase in ejection fraction with coreg/carvedilol therapy is a 10% improvement which is a drastic improvement to say a person with a 30% EF, going to 40%.. Or a perseon wtih 20% going to 30%.
The reason most likely is that you have whats called ischemic cardiomyopathy.. I have seen patients go from Ejection fractions of 25% to 55%, just last week actually. So 10% is the average but some gain much more from it.
This isnt your typical betablocker, it quite simply in terms of cardiac medicine, it is a wonder drug and if there ever was a drug that you should never stop taking, it is coreg/carvedilol. So yeah, she knows something that you dont and that is the tremendous benefit cardiac patients with systolic dysfunction gain from it. It also helps with blood pressure more than others.
Its one of the 4 drugs that prevents heart attacks. Aspirin, ACE inhibitor, Betablocker and Statin. But this particular betablocker does wonders for cardiac output.
Given what that you say your heart is functioning at 50% of what it should be, the normal range for ejection fraction is 55-70% so half of that would be about 30-35%. With Coreg therapy, that should raise on average to 40-45% depending on a few different factors. But the coreg definitely improves functions in most everyone with lowered EF's
Lisinopril is a cheap ACE inhibitor and is different class of drug, works on the kidneys, but metabolized in the lungs, thats why ACE inhibitors can get the classic cough associated with it. Prevents angiotensin from causing vasoconstriction and increasing blood pressure by reducing volume available for the fluid. Its a hydraulic system afterall. Given your cardiac history its very important to keep your blood pressure very low. If you indeed now have a cardiomyopathy, the goal is to get your blood pressure to about 90/50 as long as you are not symptomatic with lightheadedness. But the lower the pressure the heart has to pump against. THe better the out come and performance of the left ventricle which translates into better mortality/morbidity outcomes
Lisinopril is my favorite BP med used in conjuction with HCTZ to prevent the kidneys from outsmarting it and increasing salt and fluid holding in response to a lower blood pressure than it thinks it should be at. Its the kidneys' thermostat just naturally set too high in primary essential hypertension, from picking the wrong parents. I think its very effective and cheap combo to counteract the hypertension from AAS use
And benicar is a good BP med as well, I have tried it myself. Its also comes paired with HCTZ to counteract the kidneys trying to outsmart the ARB by holding fluid. Its a bit more expensive though