title: [Comparative elimination of pirprofen from the plasma and synovial fluid of the knee. 26 cases].
abstract: Twenty-six patients with various inflammatory diseases of the knee were treated with a 400 mg dose of pirprofen orally twice a day for 2 days. On the third day, samples of blood and synovial fluid were taken 3 h and 10 h approximately after a fifth 400 mg dose of the drug. Pirprofen concentrations, as determined by gas-liquid chromatography, were higher in plasma than in synovial fluid during the 2-5 h period post-dosing. They decreased with an elimination half-life of 6 h in plasma as against 41 hours in synovial fluid. This study demonstrates that pirprofen diffuses into the synovial fluid where it remains significantly longer than in plasma.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000097:blood / Q000378:metabolism*; D005260:Female; D006801:Humans; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D010666:Phenylpropionates / Q000097:blood / Q000378:metabolism*; D013582:Synovial Fluid / Q000378:metabolism*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D010666:Phenylpropionates; C008924:pirprofen
vernacular_title: Elimination comparée du pirprofène à partir du plasma et du liquide synovial du genou. 26 observations.