Coenzyme Q 10 and the Heart by Book 1 Book Coenzyme Q 10 and the Heart 1 Book Product Learn how a simple yet vital compound may be the missing link in the successful prevention and or treatment of a wide variety of cardiac conditions including congestive heart failure cardiopulmonary hypertension angina mitral valve prolapse arrhythmia and coronary artery disease. Warnings Keep out of reach of children. As with all dietary supplements consult your healthcare professional before use. See product label for more information.