Abstract |
The excretion and tissue distribution of [3H]- gomphoside was studied after i.p. and i.v. administration of the cardiac glycoside (1 micrograms/g) to male Wistar rats. Following an intraperitoneal dosage of [3H]- gomphoside, most of the radioactivity (greater than 80%) had been excreted from the body by the end of 48 hours. Biliary excretion played a major role in elimination of [3H]- gomphoside with 90 +/- 15% of radioactivity being collected in 24 hours. Renal excretion formed a minor route of elimination of the cardiac glycoside; only 6 +/- 2% being excreted over 6 days. The distribution of radioactivity to tissues after an intravenous dose was rapid; most of the dose was located in the liver (32%), and the skeletal muscle (31%) 3 minutes after injection. The pharmacokinetics of [3H]- gomphoside could be described by a two-compartment open model with an average elimination half-life of 3.7 hours, and a large volume of distribution (2.3 +/- 0.3 ml/g body weight) characteristic of the commonly used cardiac glycosides (1).
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Authors | A E Mutlib, T R Watson |
Journal | European journal of drug metabolism and pharmacokinetics
(Eur J Drug Metab Pharmacokinet)
1989 Apr-Jun
Vol. 14
Issue 2
Pg. 117-25
ISSN: 0378-7966 [Print] France |
PMID | 2591416
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
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Topics |
- Animals
- Bile
(metabolism)
- Cardenolides
(pharmacokinetics)
- Feces
(analysis)
- Half-Life
- Injections, Intraperitoneal
- Injections, Intravenous
- Liver
(metabolism)
- Male
- Rats
- Rats, Inbred Strains
- Tissue Distribution
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