800mg BID: The average dose I use in stubborn warts is 800mg twice a day for the average 150 lb person. Cimetidine usually won't work by itself for warts. The theory behind a H2 antihistamine is that chronic warts are sensitive to moisture and PH changes. Tagamet (cimetidine) will lower gastric Acid over time causing overall body PH to increase slightly. Use with a topical wart remover. Also keep feet dry.
Answered 9/28/2016
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