title: Metformin and vitamin B12 deficiency: the role of H2 receptor antagonists and proton pump inhibitors.
authors.forename: George I
authors.initials: GI
authors.lastname: Varughese
authors.forename: John H B
authors.initials: JH
authors.lastname: Scarpello
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003920:Diabetes Mellitus / Q000188:drug therapy; D015738:Famotidine / Q000009:adverse effects / Q000627:therapeutic use; D005756:Gastritis / Q000188:drug therapy; D006635:Histamine H2 Antagonists / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D007004:Hypoglycemic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D008687:Metformin / Q000009:adverse effects* / Q000627:therapeutic use; D054328:Proton Pump Inhibitors; D014805:Vitamin B 12 / Q000378:metabolism; D014806:Vitamin B 12 Deficiency / Q000139:chemically induced*
chemical_list: D006635:Histamine H2 Antagonists; D007004:Hypoglycemic Agents; D054328:Proton Pump Inhibitors; D015738:Famotidine; D008687:Metformin; D014805:Vitamin B 12