complications due to morphine sulfate or meperidine hydrochloride can be minimized by titrating the patient 's pain with small intravenous doses of narcotics ( morphine sulfate , 2 to 3 mg , or meperidine hydrochloride , 15 to 25 mg ) administered slowly at 15- to 20-minute intervals until the pain is relieved .
C0353148
meperidine hydrochloride
C0030193
pain