Hulda Clark's antiparasitic regimen is green black walnut tincture, cloves, and wormwood in large doses. It is probably the most effective, but some people will not go to the trouble of buying the three supplements and taking them all. The fresh clovecapsules that Clark recommends (Kroeger Herbs and Blue Moon make some which are available in health food stores) can also be added to the antiparasitic combinations mentioned above to increase the effects. She now says that some black walnut capsules can be as effective as the awful-tasting tincture, so these would be a good choice (Eclectic makes freeze dried water-extracted black walnut concentrate capsules.) The more serious the ailment the more I would consider using her regimen.