Metiamide is a histamine H2 receptor antagonist developed from another H2 antagonist, burimamide. It was an intermediate compound in the development of the successful anti-ulcer drug cimetidine (Tagamet).
{{chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 443226059 | Name = Metiamide | PIN = N-Methyl-''N'-(2-{[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl}ethyl)thiourea | OtherNames = 1-Methyl-3-(2-{[(5-methyl-1H''-imidazol-4-yl)methyl]thio}ethyl)thiourea | ImageFile = Metiamide.svg | ImageClass = skin-invert-image | ImageSize = 200px | ImageName = Metiamide
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).