title: Aspiration pneumonia prophylaxis.
mesh_terms: D000863:Antacids / Q000627:therapeutic use; D002927:Cimetidine / Q000627:therapeutic use; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000502:physiology; D006801:Humans; D011015:Pneumonia, Aspiration / Q000517:prevention & control*; D011229:Preanesthetic Medication
chemical_list: D000863:Antacids; D002927:Cimetidine