Look into Enzymedica, a company that specializes in Enzyme therapy products. Company provides samples, literature, educational CD's, carries a patent on their formulation for a ph sensitive capsule called thera-blend, and products have been formulated by a team of scientists and physicians. They offer two lines, one for digestive use, one for theraputic use. You should be able to find their products in high quality health food stores and markets like Whole Foods, Mothers, Wild Oats, Sprouts, Henrys, etc.