title: Vascular spasm during thromboembolism prophylaxis with heparin-dihydroergotamine.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003251:Constriction, Pathologic; D004087:Dihydroergotamine / Q000009:adverse effects*; D005260:Female; D006493:Heparin / Q000009:adverse effects*; D006801:Humans; D008297:Male; D013923:Thromboembolism / Q000517:prevention & control*; D014652:Vascular Diseases / Q000139:chemically induced*
chemical_list: D004087:Dihydroergotamine; D006493:Heparin