The acid base balance as a safety index during and after neurolept analgesia inst spirometry and electrolyte changes abstract from minerva anest 33 10 565 570 oct 1966 human fentanyl cent depress phentanyl cent depress sublimaze cent depress droperidol cent depress di hydro benzoperidol cent depress inapsine cent depress meperidine cent depress demerol cent depress atropine autonomic promethazine cent depress phenergan cent depress surgery