1. Hirunorms are new synthetic peptides designed to interact with thro
mbin in a similar way to the natural inhibitor hirudin. 2. Hirunorms a
re specific and efficient in vitro inhibitors of thrombin activity. 3.
Hirunorms are potent anticoagulant and antithrombotic agents in in vi
vo experimental models devoid of hemorrhagic effects at doses that are
active in preventing thrombosis. (C) 1998 Elsevier Science Inc.