Heartburn medicine users: watch vitamin B12 levels.
D000897:Anti-Ulcer Agents / Q000008:administration & dosage / Q000009:adverse effects*; D005764:Gastroesophageal Reflux / Q000188:drug therapy; D006635:Histamine H2 Antagonists / Q000008:administration & dosage / Q000009:adverse effects*; D006801:Humans; D007408:Intestinal Absorption / Q000187:drug effects*; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000139:chemically induced* / Q000517:prevention & control
D000897:Anti-Ulcer Agents; D006635:Histamine H2 Antagonists; D014805:Vitamin B 12