title: Pre-operative medication with rectal pyrilamine-pentobarbital.
mesh_terms: D000293:Adolescent; D000328:Adult; D002986:Clinical Trials as Topic; D006634:Histamine H1 Antagonists / Q000008:administration & dosage*; D006801:Humans; D008875:Middle Aged; D009325:Nausea / Q000517:prevention & control; D010424:Pentobarbital / Q000008:administration & dosage*; D011183:Postoperative Complications / Q000517:prevention & control*; D011229:Preanesthetic Medication; D014839:Vomiting / Q000517:prevention & control
chemical_list: D006634:Histamine H1 Antagonists; D010424:Pentobarbital