Time-dependent change in renal clearance of bethanidine in humans. 1976

A N Chremos, and D Shen, and M Gibaldi, and J D Proctor, and J H Newman

Blood levels and urinary excretion rates of bethanidine were determined in three normal human subjects following oral administration of a single dose of the drug. The postabsorptive decline of blood concentration with time was noticeably slower than the corresponding decline in the urinary excretion rate. The discrepancy can be attributed to a continual decrease in the renal clearance of bethanidine throughout the study. Therefore, pharmacokinetic modeling of urinary excretion data alone would lead to erroneous conclusions concerning the persistence of drug in the blood.

UI MeSH Term Description Entries
D008297 Male Males
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D006146 Guanidines A family of iminourea derivatives. The parent compound has been isolated from mushrooms, corn germ, rice hulls, mussels, earthworms, and turnip juice. Derivatives may have antiviral and antifungal properties.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001627 Bethanidine A guanidinium antihypertensive agent that acts by blocking adrenergic transmission. The precise mode of action is not clear. Batel,Betanidine,Bethanidine Sulfate,Bethanidine, Sulfate (2:1),Sulfate, Bethanidine
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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