title: Over-the-counter H2-receptor antagonists for heartburn.
mesh_terms: D002927:Cimetidine / Q000009:adverse effects / Q000627:therapeutic use; D004347:Drug Interactions; D005764:Gastroesophageal Reflux / Q000517:prevention & control; D006356:Heartburn / Q000188:drug therapy*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D004366:Nonprescription Drugs / Q000627:therapeutic use*
chemical_list: D006635:Histamine H2 Antagonists; D004366:Nonprescription Drugs; D002927:Cimetidine