Abstract
The optimal conditions for analysis of low-molecular-weight heparin (LMWH) drugs by the Heptest and the metrological characteristics of the Heptest method were determined. The effects of two LMWH preparations of enoxaparin sodium, the domestic drug Enoxaparin sodium (Technologiya Lekarstv, Russia) and the original drug Clexane (Sanofi, France), on the clotting time of human plasma in the Heptest were comparatively analyzed. The mean blood clotting times were calculated for each dilution of each series of Enoxaparin sodium and Clexane based on the results of the Heptest. Graphs of the dependence of the plasma clotting time on the degree of dilution of these drugs were plotted. The shapes of the curves of the dependence of the blood plasma clotting time on the activity of enoxaparin sodium were shown to be similar for both Enoxaparin sodium and Clexane. The Heptest method showed that Enoxaparin sodium (Technologiya Lekarstv, Russia) was comparable to the original drug Clexane (Sanofi, France).
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