We examined the effect of L-lactic acid on calcium absorption in male Wistar rats made achlorhydric by dietary omeprazole, a proton pump inhibitor. The dietary omeprazole intake (0.03 g/100 g of diet) increased the gastric pH and decreased the apparent calcium absorption ratio. Dietary famotidine (0.03 g/100 g of diet), an H2-receptor antagonist, and lower doses of omeprazole (0.005 or 0.01 g/1...

Omeprazole is a proton-pump inhibitor recently approved in the United States for the treatment of gastric ulcer disease in horses. A study was designed to determine the effects of omeprazole treatment on the physiological indices of performance of horses during incremental treadmill exercise. In a crossover-design study carried out over 2 weeks, five horses completed standardized incremental ex...

Omeprazole is a potent proton pump inhibitor and usually is well tolerated. Adverse effects of this drug have been reported in up to 5% of patients, most of which are trivial and disappear rapidly on discontinuation of the drug. Skin adverse reactions attributed to omeprazole are uncommon and include rashes, urticaria, angio-oedema, acute disseminated epidermal necrolysis, lichen spinulosus, an...

1. Omeprazole (R,S)-5-methoxy-2-[[(4-methoxy-3,5-dime-thylpyridine-2-yl)methyl]sulphinyl]-1Hbenzimidazole (CAS Number 73590-58-6) is a substituted benzimidazole which inhibits gastric secretion in animals and humans. It is intended for use for treatment of gastric ulcers in horses as an oral paste containing 37% w/w omeprazole at the dose of 4 mg omeprazole/kg bw/day for 28 days, followed by an...

BACKGROUND The duration of antacid-induced hypergastrinemia after cessation of administration of omeprazole and famotidine apparently has not been determined in dogs. HYPOTHESIS That serum gastrin will return to basal concentrations by 7 days after cessation of famotidine or omeprazole administration. ANIMALS Nine healthy, adult, male, research colony dogs. METHODS Randomized, cross-over ...

A growing body of evidence has shown a broad variability in interindividual pharmacodynamic response profiles to the platelet inhibitor clopidogrel, and patients with reduced platelet inhibition have an increased risk of recurrent atherothrombotic events. Numerous factors may contribute to poor clopidogrel response. Among these, that secondary to a drug interaction with the proton pump inhibito...

A growing body of evidence has shown a broad variability in interindividual pharmacodynamic response profiles to the platelet inhibitor clopidogrel, and patients with reduced platelet inhibition have an increased risk of recurrent atherothrombotic events. Numerous factors may contribute to poor clopidogrel response. Among these, that secondary to a drug interaction with the proton pump inhibito...

Apart from reducing the acid secretion, omeprazole inhibits activation of the nuclear factor-κB, release of inflammatory cytokines, and chemotaxis of neutrophils. These mechanisms prompted us to evaluate antineuropathic effect of omeprazole in the chronic constriction injury (CCI)-induced rat model of neuropathic pain and LPS mediated ROS-induced U-87 cells. Omeprazole at 50 mg/kg/day/oral for ...

Weekend treatment with 20 mg omeprazole reduces ulcer relapse rates but the results may improve with a higher dose regimen. We have evaluated three day weekend treatment with 20 and 40 mg doses of omeprazole in eight healthy subjects in a double blind crossover study. Twenty four hour ambulatory intragastric pH and basal and meal stimulated serum gastrin and serum pepsinogens A and C values wer...

The extent of duodenal bacterial overgrowth during the pronounced inhibition of acid secretion that occurs with omeprazole treatment is unknown. The bacterial content of duodenal juice of patients treated with omeprazole was therefore examined in a controlled prospective study. Duodenal juice was obtained under sterile conditions during diagnostic upper endoscopy. Aspirates were plated quantita...