seventeen normokalemic dogs [ serum potassium 3.9 +/- 0.3 meg/l ( +/- 1 s.d . ) ] and 19 hypokalemic dogs ( serum potassium 2.2 +/- 0.3 meg/l ) were allocated to a morphine pretreatment group ( morphine sulfate 3 mg/kg ) or to a control group without morphine .
C0066814
morphine sulfate
C0026549
morphine