I had a aortic valve replacement and two cardicac bypasses in July of 2010. I am taking Spironolactone 25mg, Metropolol 50mg, and Simvastin 40mg for my heart. Also Oxycodone 240mg per day for back pain and Paxil 20mg for depression. These medications are causing a very dry mouth and resulting in extensive dental carries and associated expense. What is my risk of heart failure or death if I stop taking the heart medications? If my risk is a 30per cent or so increase I would be willing to stop the medications. If the risk is 80 or 90 percent, then that is another thing althogether.