In this study our experiments followed in vitro and in vivo the effect of omeprazole on purified and erythrocyte carbonic anhydrase (CA) I and II isozymes, as well as on gastric mucosa CA IV in humans. Our in vitro results show that omeprazole-induced inhibition of purified CA I and CA II and gastric mucosa CA IV is dose- and pH-dependent. In vivo, the i.v. administration of omeprazole in human...

Long-term use of non-steroidal anti-inflammatory drugs (NSAIDs) increases the risk of serious gastroduodenal events. To minimise these risks, patients often require concomitant acid-suppressive therapy. We conducted a literature review of clinical trials examining use of ranitidine 150 mg twice daily to heal gastroduodenal ulcers (GU) in NSAID recipients. Seven studies were identified. After 8 ...

BACKGROUND/AIMS The aim of this study was to evaluate the efficacy and cost efficiency of omeprazole 10 mg and rabeprazole 10 mg once daily for 24 weeks in the maintenance therapy. METHODS This was a randomized, open-label study enrolling 279 patients with erosive esophagitis A or B (Los Angeles classification) and typical gastroesophageal reflux disease symptoms. Patients who showed complete...

NorA is a membrane-associated multidrug efflux protein that can decrease susceptibility to fluoroquinolones in Staphylococcus aureus. We have previously determined that NorA inhibition can increase fluoroquinolone killing activity and post-antibiotic effect. In the current investigation, we studied the killing activity and development of resistance for levofloxacin, ciprofloxacin and norfloxaci...

BACKGROUND Eighty percent of patients treated medically for gastroesophageal reflux disease relapse after treatment. Many of these patients require indefinite treatment with omeprazole to prevent recurrence. Nissen fundoplication has been shown to be effective, safe and cost effective in the management of gastroesophageal reflux disease. We suggest a treatment algorithm, which encourages early ...

Background and Objectives. Antacids are often prescribed to preterm infants due to misdiagnosis of gastro-oesophageal reflux. This suppresses gastric acidity, a major defence mechanism against infection. This study aims to determine if ranitidine and omeprazole use in very low birth weight (VLBW) neonates, <1500 grams, is associated with increased risk of late onset sepsis, necrotising enteroco...

Background. Randomized controlled trials (RCTs) have been conducted comparing the efficacy of rabeprazole 20 mg or omeprazole 20 mg once daily for patients with erosive gastroesophageal reflux disease (GERD). Until now, no study has synthesized all available data examining this issue. Method. Medline, Embase, and the Cochrane central register of controlled trials were searched (through December...

BACKGROUND Oral anticoagulants like the coumarin derivatives are characterised by a particularly narrow therapeutic range. Any interfering co-medication can pose a challenge to establishing a stable anticoagulant dosage regimen and thus present a serious risk for the patient. Here we describe two cases of patients on anticoagulant therapy that suggest possible drug interactions between phenproc...

1. Yong CS, Jung JH, Rhee JD, Kook KC, Choi HG. Physicochemical characterization and evaluation of buccal adhesive tablets containing omeprazole. Drug Develop Ind Pharm 2001;27:447-55. 2. Martindale-The complete drug reference. In: Sweetman SC, editor. London: Pharmaceutical Press; 2005. 3. Clarke’s Analysis of Drugs and Poisons. In: Moffat AC, Osselton MD, Widdop B, editors. London: Pharmaceut...

The present work describes a simple Reverse Phase HPLC method for the determination of Omeprazole and Domperidone from capsule formulations. The determination was carried out on a Gasco, ODS, C-18 (250× 4.5 mm, 5 micron) column using a mobile phase of Acetonitrile: 0.05M ammonium acetate buffer (pH4) in the ratio of (85:15). The flow rate and runtime were 1 ml/min and 10 min, respectively. The ...