one hundred and thirty-two patients received a fixed combination of heparin sodium 5000 units plus dihydroergotamine mesylate 0.5 mg ( h/dhe ) twice a day and 137 patients received a fixed combination of low molecular weight heparin 1500 units plus dihydroergotamine mesylate 0.5 mg ( lmwh/dhe ) once a day as well as one injection of placebo per day .
C0019134
heparin
C0019139
lmwh