Nabata H, Uchino M, Okazaki A, Sakai K. Antiplatelet effects of fenflumizole, a new anti-inflammatory drug, in dogs.
JAPANESE JOURNAL OF PHARMACOLOGY 1987;
44:97-100. [PMID:
3626187 DOI:
10.1254/jjp.44.97]
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Abstract
Fenflumizole (2-(2,4-difluorophenyl)-4,5-bis(4-methoxyphenyl) imidazole) was given to dogs in a single oral dose of 3 or 10 mg/kg. The plasma concentrations of fenflumizole and the two metabolites (mono- and di-demethyl forms) attained to the peak level 1-2 hr after dosing of fenflumizole, returning to near the predose levels 8 hr after the dosing. Fenflumizole (10 mg/kg) given orally significantly inhibited collagen- and ADP-induced platelet aggregations ex vivo over 4 hr after the dosing. Fenflumizole effectively inhibited in vitro collagen-induced platelet aggregation, but failed to prevent ADP-induced aggregation. The mono-demethyl form of fenflumizole inhibited in vitro ADP- and collagen-induced aggregations, but the di-demethyl form was ineffective in inhibiting them.
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