Absorption and excretion of suprofen in rats.
Drug Metab Dispos
; 11(4): 387-91, 1983.
Article
em En
| MEDLINE
| ID: mdl-6137348
ABSTRACT
DL-2-(4-(2-Thienylcarbonyl)phenyl)propionic acid (suprofen, S) was rapidly absorbed in rats after oral administration. Blood levels after a single oral dose of 2, 10, 50, or 100 mg/kg of 3H-S reached maxima within 30 min and were dose-dependent. The major portion of the drug was shown to be absorbed from the upper part of the small intestine and a portion from the stomach. The radioactivity in rat plasma was extensively bound to the plasma protein in vivo; this was found to be unchanged S and four metabolites. Elimination of S and its metabolites from blood was rapid; 3H was mostly excreted in the urine and feces within 24 hr after oral administration of 3H-S. No significant amounts of 14CO2 were excreted in expired air after administration of 14C-S. Rat urine contained S and four metabolites found in rat plasma, accounting for about 60% of the urinary radioactivity. After rats with biliary fistulas were given an oral dose of 2 mg/kg of 3H-S, 41% of the dose was excreted in the bile during 48 hr; there was significant enterohepatic circulation. When single or 21 consecutive daily doses of 3H-S were administered to rats, the blood levels after the multiple doses were higher than those after a single dose but no significant difference was found in excretion of 3H.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenilpropionatos
/
Suprofeno
Limite:
Animals
Idioma:
En
Revista:
Drug Metab Dispos
Assunto da revista:
FARMACOLOGIA
Ano de publicação:
1983
Tipo de documento:
Article