title: Cimetidine for ever (and ever and ever...)?
mesh_terms: D002908:Chronic Disease; D002927:Cimetidine / Q000009:adverse effects / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000188:drug therapy*; D006146:Guanidines / Q000627:therapeutic use*; D006801:Humans; D013997:Time Factors
chemical_list: D006146:Guanidines; D002927:Cimetidine