Cimetidine and ranitidine.
D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D002927:Cimetidine / Q000494:pharmacology / Q000627:therapeutic use*; D005663:Furans / Q000494:pharmacology / Q000627:therapeutic use*; D005750:Gastric Juice / Q000378:metabolism; D006146:Guanidines / Q000627:therapeutic use*; D006801:Humans; D010437:Peptic Ulcer / Q000188:drug therapy; D011899:Ranitidine; D012636:Secretory Rate / Q000187:drug effects
D000897:Anti-Ulcer Agents; D005663:Furans; D006146:Guanidines; D002927:Cimetidine; D011899:Ranitidine