RT Journal Article
SR Electronic
T1 The area under the curve of metabolites for drugs and metabolites cleared by the liver and extrahepatic organs. Its dependence on the administration route of precursor drug.
JF Drug Metabolism and Disposition
JO Drug Metab Dispos
FD American Society for Pharmacology and Experimental Therapeutics
SP 97
OP 101
VO 13
IS 1
A1 P J Klippert
A1 J Noordhoek
YR 1985
UL http://dmd.aspetjournals.org/content/13/1/97.abstract
AB The venous equilibrium model (or well-stirred model) is used to determine the area under the blood concentration vs. time curve of a metabolite formed from a precursor drug. It will be shown that the AUC of a metabolite will change according to the route of precursor drug administration(whether intraarterially, intravenously, via the portal vein, or orally) when the drug and/or metabolite is eliminated by more than one organ. Elimination includes hepatic and extrahepatic metabolism and renal excretion. The validity of the model is probed by using literature data for drug and metabolite areas. Finally, the use of metabolite areas for evaluating the complete/incomplete absorption or orally administered precursor drug is discussed.