the efficacy of combined dihydroergotamine and heparin ( dhe-heparin ) medication ( 2500 iu sodium heparin and 0.5 mg dhe , both given subcutaneously twice daily ) or low doses of heparin ( 5,000 iu of sodium heparin given subcutaneously thrice daily ) in preventing postoperative thromboembolic complications was investigated in a prospective , randomized trial in 125 patients over the age of 40 years undergoing elective major gynecological surgery .
C0037513
sodium heparin
C0032787
postoperative