Coenzyme Q-10 (CoQ10) is an antioxidant that is made naturally in the body. The body uses CoQ10 for energy and cell growth and to protect cells from damage that could lead to cancer. CoQ10 levels decrease with age and are often low in patients with chronic diseases such as heart conditions, muscular dystrophies, Parkinson's disease, cancer, diabetes, and HIV/AIDS. Some prescription drugs, particularly statins (which are used to lower cholesterol), may also lower CoQ10 levels. CoQ10 supplementation offers benefits for patients with congestive heart failure, hypertensive heart disease, ischemic or dilated cardiomyopathy, mitral valve prolapse, reperfusion injury after coronary artery bypass graft surgery, and other heart problems. CoQ10 interacts with the anticoagulant warfarin (Coumadin®), and should not be used by patients taking warfarin unless it has been discussed with their physician and warfarin therapy (INR) is monitored by laboratory testing when coenzyme Q-10 is started and regularly thereafter. Ask one of our professionals to help you to select a quality CoQ10 supplement.