title: The effects of fentanyl and droperidol, alone and in combination, on pain thresholds in human volunteers.
mesh_terms: D000328:Adult; D001544:Benperidol / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004357:Drug Synergism; D005260:Female; D005283:Fentanyl / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D010146:Pain / Q000188:drug therapy*; D010919:Placebos
chemical_list: D010919:Placebos; D001544:Benperidol; D005283:Fentanyl