Ranitidine and cimetidine.
D002927:Cimetidine / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D010349:Patient Compliance; D011899:Ranitidine / Q000008:administration & dosage* / Q000009:adverse effects
D002927:Cimetidine; D011899:Ranitidine