[Fibrinolytic and thrombolytic properties of the drug morikrase].

Fibrinolytic and thrombolytic properties of morikrase, a complex of proteinases obtained from hepatopancreatic tissues of king crab (Paralithodes camtschatica), were studied in vivo and in vitro. High fibrinolytic activity and dose-dependent activating properties were detected on standard and heated fibrin plates. The preparation maintained its properties during long-term storage at 4 degrees and 22 degrees C. The thrombolytic activity of the drug, affecting the preformed thrombus, was observed both in vitro and in vivo, in rats with experimental thrombosis. Two-phase alteration of the fibrinolytic system and moderate hypocoagulation were found after intravenous administration of morikrase.