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Lack of effect of pantoprazole on the pharmacodynamics and pharmacokinetics of warfarin. 1995

L Duursema, and F O Müller, and R Schall, and M V Middle, and H K Hundt, and G Groenewoud, and V W Steinijans, and H Bliesath
FARMOVS Institute for Clinical Pharmacology and Drug Development, Department of Pharmacology, University of the Orange Free State, Bloemfontein, Republic of South Africa.

Twenty-six healthy males took part in this double-blind, randomised, placebo-controlled, two-period, cross-over study. Pantoprazole (40 mg) (test) or placebo (reference) were administered once daily, for 8 days, with a 3 week washout period. A single oral dose of 25 mg warfarin sodium was co-administered with pantoprazole or placebo on Day 2 of each treatment period. The 90% confidence intervals for the 'test/reference' mean ratios of the excess AUC(0.168 h) of prothrombin time and AUC(0.168 h) of factor VII, and of Cmax, AUC and t1/2 of both R- and S-warfarin fell within the equivalence range of 80% to 125%. These results suggest that pantoprazole does not alter the pharmacokinetics or pharmacodynamics of warfarin.

UI MeSH Term Description Entries
D008297 Male Males
D009853 Omeprazole A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. H 168-68,Omeprazole Magnesium,Omeprazole Sodium,Prilosec,H 168 68,H 16868,Magnesium, Omeprazole,Sodium, Omeprazole
D001777 Blood Coagulation The process of the interaction of BLOOD COAGULATION FACTORS that results in an insoluble FIBRIN clot. Blood Clotting,Coagulation, Blood,Blood Clottings,Clotting, Blood
D004311 Double-Blind Method A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment. Double-Masked Study,Double-Blind Study,Double-Masked Method,Double Blind Method,Double Blind Study,Double Masked Method,Double Masked Study,Double-Blind Methods,Double-Blind Studies,Double-Masked Methods,Double-Masked Studies,Method, Double-Blind,Method, Double-Masked,Methods, Double-Blind,Methods, Double-Masked,Studies, Double-Blind,Studies, Double-Masked,Study, Double-Blind,Study, Double-Masked
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
D000077402 Pantoprazole 2-pyridinylmethylsulfinylbenzimidazole proton pump inhibitor that is used in the treatment of GASTROESOPHAGEAL REFLUX and PEPTIC ULCER. BY 1023,BY-1023,Pantoprazole Sodium,Protonix,SK&F 96022,SK&F-96022,SKF-96022,BY1023,SK&F96022,SKF 96022,SKF96022
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
D001562 Benzimidazoles Compounds with a BENZENE fused to IMIDAZOLES.
D013454 Sulfoxides Organic compounds that have the general formula R-SO-R. They are obtained by oxidation of mercaptans (analogous to the ketones). (From Hackh's Chemical Dictionary, 4th ed)

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