title: Ranitidine suppression of gastric hypersecretion resistant to cimetidine.
mesh_terms: D000368:Aged; D002927:Cimetidine / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology*; D005663:Furans / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology*; D005744:Gastric Acid / Q000378:metabolism*; D005750:Gastric Juice / Q000378:metabolism; D006146:Guanidines / Q000494:pharmacology*; D006635:Histamine H2 Antagonists / Q000494:pharmacology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010434:Pepsin A / Q000378:metabolism; D011899:Ranitidine
chemical_list: D005663:Furans; D006146:Guanidines; D006635:Histamine H2 Antagonists; D002927:Cimetidine; D011899:Ranitidine; D010434:Pepsin A