patients in group a ( n = 10 ) received fentanyl epidurally ( 0.1-0.2 mg diluted with 0.9 % saline solution ) for treatment of postoperative pain , whereas in group b ( n = 10 ) systemic opiate therapy was performed by intramuscular application of piritramide ( dipidolor , 15-25 mg ) .
C0031982
piritramide
C0809927
dipidolor