The effect of halofenate or halofenate free acid on human, rat and guinea pig platelet aggregation |
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Authors: | DH Minsker PT Jordan P Kling A MacMillan HB Hucker |
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Abstract: | Halofenate free acid (HFA), the major metabolite of the hypolipemic agent halofenate, blocked the secondary phase of human platelet aggregation induced by ADP, epinephrine, or thrombin; higher concentrations of clofibrate free acid (CFA) were required to produce similar inhibitory effects on platelet aggregation. HFA and CFA inhibited collagen-induced aggregation of human, rat, or guinea pig platelets. Halofenate orally administered to rats caused inhibition of collagen-induced aggregation when plasma levels of HFA exceeded 300 mug/ml, a clinically achievable human plasma concentration. The platelet inhibitory effects of clofibrate administration were less than those observed with halofenate administration. |
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