I frequent health-food stores, and I have seen a ton of neem soaps, shampoos, etc. They call it "nature's pharmacy"- from stuff I've read it's widely used in Ayurvedic medicine/treatments. It is supposed to be purifying, detoxifying, and healing. Mind you, I do not know how true any of this is, and I've not had experience with it as a supplement, as I've mostly seen it as a topical treatment. Maybe it does the same internally? Not sure. I think I'd talk to a doc first before trying though, at least to make sure it won't go badly with anything else you may be taking.