The effect of a single and 2-week administration of ubiquinone-9 on the blood coagulation system and the functional activity of platelets was studied in the experiments in vitro and in vivo on rats. It was shown that a single dose of 150 mg/kg of ubiquinone decreased adhesion and that of 5 mg/kg decreased aggregation of platelets. Both with a single and 2-week drug administration in doses of 5, 50 and 150 mg/kg an insignificant decrease of coagulability was observed.
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