Anticoagulation therapy is routinely used in cases of non ST-segment elevation acute coronary syndromes (NSTE-ACS). The most commonly used drug in such events is enoxaparin, a low molecular weight heparin. Fondaparinux, a synthetic pentasaccharide, is as effective as enoxaparin in terms of survival or residual angina pectoris and significantly reduces bleeding complications. The purpose of this study was to assess the magnitude of cost reductions if enoxaparin were replaced by fondaparinux in Switzerland.