Niperotidine is a histamine antagonist selective for the H2 subtype. It was studied as a treatment for excessive gastric acidity, but withdrawn after human trials showed liver damage.
{{Chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 444599209 | ImageFile = Niperotidine.svg | ImageClass = skin-invert-image | ImageSize = 300 | PIN = (Z)-N1-[(2H-1,3-Benzodioxol-5-yl)methyl]-N′1-{2-[({5-[(dimethylamino)methyl]furan-2-yl}methyl)sulfanyl]ethyl}-2-nitroethene-1,1-diamine | OtherNames =
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).