New drugs. H2 receptor antagonists--cimetidine and ranitidine.
D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D002927:Cimetidine / Q000378:metabolism / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000188:drug therapy; D005663:Furans / Q000627:therapeutic use*; D005764:Gastroesophageal Reflux / Q000188:drug therapy; D006471:Gastrointestinal Hemorrhage / Q000517:prevention & control; D006146:Guanidines / Q000627:therapeutic use*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D011899:Ranitidine; D013276:Stomach Ulcer / Q000188:drug therapy
D000897:Anti-Ulcer Agents; D005663:Furans; D006146:Guanidines; D006635:Histamine H2 Antagonists; D002927:Cimetidine; D011899:Ranitidine