5 Iloprost can inhibit platelet function and its use with anticoagulants (such as heparin, coumarin-type anticoagulants) or other inhibitors of platelet aggregation (such as acetylsalicylic acid, non-steroidal anti-inflammatory medicinal products, ticlopidine, clopidogrel and glycoprotein IIb/ IIIa antagonists: abciximab, eptifibatide and tirofiban) may increase the risk of bleeding.