title: A comparison of the circulatory effects in man of the analgesics fentanyl, pentazocine and pethidine.
mesh_terms: D000768:Anesthesia, General; D001794:Blood Pressure / Q000187:drug effects*; D002986:Clinical Trials as Topic; D003243:Consciousness; D004562:Electrocardiography; D005260:Female; D005283:Fentanyl / Q000494:pharmacology*; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008614:Meperidine / Q000494:pharmacology*; D010423:Pentazocine / Q000494:pharmacology*; D012119:Respiration / Q000187:drug effects
chemical_list: D008614:Meperidine; D010423:Pentazocine; D005283:Fentanyl