title: Bedtime treatment of duodenal ulcer.
mesh_terms: D002927:Cimetidine / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use; D002940:Circadian Rhythm; D004334:Drug Administration Schedule; D004381:Duodenal Ulcer / Q000188:drug therapy*; D006635:Histamine H2 Antagonists / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D011899:Ranitidine / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D006635:Histamine H2 Antagonists; D002927:Cimetidine; D011899:Ranitidine