Absence of a significant pharmacokinetic interaction between hydrochlorothiazide and triamterene when coadministered. 1984

R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet

Hydrochlorothiazide, triamterene, and hydroxytriamterene sulfate were monitored in the plasma and urine of 24 healthy young men taking single doses of a liquid preparation containing both hydrochlorothiazide and triamterene, liquid preparations containing either of these drugs alone, and a combination tablet recently formulated with a dose ratio of hydrochlorothiazide : triamterene (1 : 1.5) found to give optimal potassium-sparing effect. In contradiction to a recent publication, no interaction between the drugs affecting the bioavailability or renal clearance of either could be demonstrated. The previous report of drug-drug interaction probably arose from formulation-related problems with bioavailability from the two capsule and two tablet products which had been studied. A well-formulated hydrochlorothiazide-triamterene combination tablet promotes plasma concentrations and urinary excretion of hydrochlorothiazide, triamterene, and hydroxytriamterene sulfate which are virtually identical to those seen after either a combination liquid dosage form or simple liquid forms containing only one of the two drugs.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D004338 Drug Combinations Single preparations containing two or more active agents, for the purpose of their concurrent administration as a fixed dose mixture. Drug Combination,Combination, Drug,Combinations, Drug
D004347 Drug Interactions The action of a drug that may affect the activity, metabolism, or toxicity of another drug. Drug Interaction,Interaction, Drug,Interactions, Drug
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006852 Hydrochlorothiazide A thiazide diuretic often considered the prototypical member of this class. It reduces the reabsorption of electrolytes from the renal tubules. This results in increased excretion of water and electrolytes, including sodium, potassium, chloride, and magnesium. It is used in the treatment of several disorders including edema, hypertension, diabetes insipidus, and hypoparathyroidism. Dichlothiazide,Dihydrochlorothiazide,Esidrex,Esidrix,HCTZ,HydroDIURIL,Hypothiazide,Oretic,Sectrazide
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001682 Biological Availability The extent to which the active ingredient of a drug dosage form becomes available at the site of drug action or in a biological medium believed to reflect accessibility to a site of action. Availability Equivalency,Bioavailability,Physiologic Availability,Availability, Biologic,Availability, Biological,Availability, Physiologic,Biologic Availability,Availabilities, Biologic,Availabilities, Biological,Availabilities, Physiologic,Availability Equivalencies,Bioavailabilities,Biologic Availabilities,Biological Availabilities,Equivalencies, Availability,Equivalency, Availability,Physiologic Availabilities
D014223 Triamterene A pteridinetriamine compound that inhibits SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. Dyrenium,Dytac,Urocaudal

Related Publications

R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
December 1995, Journal of clinical pharmacology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
January 1996, European journal of clinical pharmacology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
January 1992, European journal of clinical pharmacology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
January 1987, British journal of clinical pharmacology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
January 1995, Drug metabolism and drug interactions,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
February 2002, Journal of clinical pharmacy and therapeutics,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
October 2007, Journal of clinical pharmacology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
May 2004, Journal of clinical pharmacology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
November 2004, The American journal of cardiology,
R A Upton, and R L Williams, and E T Lin, and W L Gee, and C D Blume, and L Z Benet
January 1986, Transactions of the Royal Society of Tropical Medicine and Hygiene,
Copied contents to your clipboard!