My husband had a heart attack in 2008 and now lives in a wheelchair. His hands are shaky and has trouble eating and his legs are shaky and weak and has trouble standing and his feet are swollen. He is 88 and has a pacemaker with defibrillator which he had put in 7/15/08. He also takes Carvedilol 3.125mg twice a day. Is there an alternate drug? sandy92543