Coenzyme Q10 (CoQ10) - Used as an effective therapy in congestive heart failure, CoQ10 has only recently been studied as a cancer treatment. Cancer patients have been found to have deficiencies of CoQ10. Clinical trials in breast cancer have resulted in no further metastases, improved quality of life (no weight loss and less pain), and partial remission in six of 32 patients. Vitaline makes a chewable CoQ10 with vitamin E (800/648-4755; 503/482-9231, in Canada).