I am curious if anyone has had mitral valve replacement & maze procedure & was prescribed Carvedilol & Lisinopril? I am experiencing the common side effects, tired & sleepy all the time, lightheadedness when I stand too quickly, lack of energy. I have always been active, hard-working, outdoor activities. Now I usually feel like I could fall asleep. I'm wondering if anyone has had the same side effects & have tried to stop these drugs. My Dr wants me to take them but I feel he is taking the safest & most common approach & I would like to hear from someone who has kicked those drugs & still had good results & good heart function without them.