Histamine h-2 receptor antagonists.
D004381:Duodenal Ulcer / Q000188:drug therapy; D004941:Esophagitis / Q000188:drug therapy; D006146:Guanidines / Q000009:adverse effects / Q000627:therapeutic use*; D006634:Histamine H1 Antagonists; D006635:Histamine H2 Antagonists; D007093:Imidazoles / Q000009:adverse effects / Q000627:therapeutic use*; D013276:Stomach Ulcer / Q000188:drug therapy; D015043:Zollinger-Ellison Syndrome / Q000188:drug therapy
D006146:Guanidines; D006634:Histamine H1 Antagonists; D006635:Histamine H2 Antagonists; D007093:Imidazoles