title: The prevention of analgesic-induced nausea and vomiting by cyclizine.
mesh_terms: D000698:Analgesia / Q000009:adverse effects*; D002986:Clinical Trials as Topic; D003061:Codeine / Q000009:adverse effects; D003501:Cyclizine / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007981:Levorphanol / Q000009:adverse effects; D008297:Male; D008614:Meperidine / Q000009:adverse effects; D008691:Methadone / Q000009:adverse effects; D009325:Nausea / Q000517:prevention & control*; D010919:Placebos; D014839:Vomiting / Q000517:prevention & control*
chemical_list: D010919:Placebos; D007981:Levorphanol; D008614:Meperidine; D003501:Cyclizine; D008691:Methadone; D003061:Codeine