FIELD: medicine, pharmaceutics.
SUBSTANCE: anticoagulant exhibiting a thrombin and factor Xa inhibiting activity represents a solution of biologically active birch bark complex prepared by water extraction of ground birch bark on boiling, concentration of aqueous extract and sodium chloride saturation, sediment discharge, ethyl acetate extraction of filtrate, concentration of filtrate, dilution with chloroform, sediment filtration and dissolution to ensure final concentration of 1.0-251.2 mcg/ml, effective for thrombin activity inhibition, and final concentration of 0.1-851.0 mcg/ml, effective for blood coagulation factor Xa activity inhibition.
EFFECT: invention allows implementing thrombin activity inhibition.
3 ex, 2 tbl
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