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The biological effects of a new antiplatelet agent, triflusal, were evaluated in patients with cardiac valvular prostheses. Each patient received 900 mg/day of oral triflusal for 30 days. Triflusal significantly inhibited platelet aggregation induced by adenosine diphosphate (1 to 5 mumol) or epinephrine (12.5 mumol), showing a slight effect on bleeding time (basal: 6 +/- 1.7 min; 30 days of treatment: 8.0 +/- 2.7 min). Serum levels of thromboxane B2 were significantly reduced during treatment, but changes in serum levels of 6-keto-prostaglandin F1 alpha were not observed, suggesting that triflusal does not affect prostacyclin biosynthesis by the vascular wall. The results show that triflusal has a marked inhibitory and selective effect on platelet function in patients with cardiac valvular prostheses.


M J Dominguez, M Vacas, Y Sáez, I Olabarría, A Velasco, J A Iriarte, J Forn. Effects of triflusal in patients with prosthetic heart valves. Clinical therapeutics. 1985;7(3):357-60

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PMID: 3838919

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