These are not drugs but may make a difference in fighting cancer if added to your diet.
Flaxseed, also known as linseed, is an ideal source of dietary fiber, omega 3 fat, and lignan. Actually, it is the richest source of lignan on earth. It has lignan levels that are 100-800 times higher than any other plant source. Lignan has been shown in many studies to reduce the size of cancerous tumors in rats and mice, and has been used with success in treating both breast and prostate cancer in humans.