Tamara Sutfin

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1. After i.v. and intraduodenal administration of 3H-felodipine to rats, approx. 50% of the dose was excreted in bile in the first 6 h. Total urinary and biliary recoveries after both administration routes were similar. 2. Neither unchanged felodipine nor oxidized pyridine metabolite was detected in bile. Bile collection had no effect on the blood(More)
The effect of concomitant treatment with omeprazole (20 mg/day) on the plasma concentration and anticoagulation effect of warfarin was studied in 21 young healthy men. An initial three weeks' treatment with warfarin alone was administered to determine the doses required for the subjects' vitamin K-dependent coagulation factors to fall within 10-20% of the(More)
This study was designed to compare the pharmacokinetic and short-term pharmacodynamic profile of extended-release glipizide GITS (Glucotrol XL) given in a dosage of 20 mg once daily with that of immediate-release glipizide (Glucotrol) 10mg twice daily in patients with type II diabetes mellitus. In an open-label, randomized, two-way crossover study, each(More)
Felodipine, a vasoselective dihydropyridine calcium antagonist, has been given i.v. (0.2 μmol/kg) to anaesthetized and conscious male rats. There was no effect of pentobarbital anaesthesia on bile flow over a 6 h observation period. Felodipine increased the 6 h recovery of bile by approximately 25% in the conscious rat but in the anaesthetized rat there was(More)
The systemic availability of intraduodenally (i.d.) administered felodipine in the rat is about 10%. The purpose of this study was to determine to what extent intestinal metabolism contributes to the first-pass elimination of felodipine in the rat. Four different types of experiments were performed. 1) [3H]Felodipine was given i.v. and i.p.; 2) the uptake(More)
The biliary secretion of [14C]felodipine in 4 healthy human subjects was studied by use of the multiple marker dilution principle with double lumen tubes placed in the stomach and intestine. Insignificant amounts of14C activity were recovered from gastric aspirates. The individual recovery from intestinal aspirates varied from 2.9 to 8.5% of the dose of(More)
OBJECTIVE To compare the efficacy and safety of controlled-release glipizide (glipizide-GITS [gastrointestinal therapeutic system]) and immediate-release glipizide in patients with non-insulin-dependent diabetes mellitus (NIDDM). RESEARCH DESIGN AND METHODS In a multicenter, open-label, randomized, two-way crossover study, 132 patients with NIDDM received(More)
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