This blend is taken for 10 days or more at bedtime for the treatment of microorganizms in the large instestine--follow the directions on the bottle. It can be used with other Parasitical support formulas at the same time for faster ejection from your body of this pathogen. The FDA has not approved of these statements. This formula assures good health in the large intestine and G.I. Tract by supporting larger vermifuge elimation by your immune system. Contains Pau D'Arco, black walnut leaves, rose hips, garlic root, wormseed oil and more.