I had this interesting experience. For years I had a craving for alcoholic drinks and tho I was able to keep from drinking too much if I did not have my one beer a day the cravings got much more noticable. Then I started on H. Clark's programs and started with the parasite cleanse. Within a day or two my physical craving for alcohol was completely gone. Clark does mentioning this happening in her books. One woman had an alcoholic husband who refused to take the herbs. She began adding them to his food and within a short time he stopped drinking and never knew why that happened.