Abstract:
BACKGROUND:The effects of proton pump inhibitors and Helicobacter pylori infection on the distribution of drugs used for the eradication of the bacteria are poorly understood. AIM:The aim of this study was to investigate the effects of a 7-day administration of 20 mg of omeprazole on the pharmacokinetics of amoxicillin and ampicillin in the plasma, saliva and gastric juice of individuals with and without H. pylori infection. METHODS:Fifty-four healthy volunteers without endoscopic lesions were enrolled. Twenty-six volunteers were included in the amoxicillin study and 28 individuals in the ampicillin study. Each study had an open randomized two-period crossover design and a 21-day washout period between phases. Plasma, saliva and gastric juice concentrations of amoxicillin and ampicillin in subjects with and without omeprazole pre-treatment were measured by reversed-phase HPLC using UV detection. RESULTS:Neither pre-treatment with omeprazole nor H. pylori infection interfered with the plasma bioavailability of amoxicillin or ampicillin, as assessed by the AUC0-2 h. Neither ampicillin nor amoxicillin were detected in saliva or gastric juice in any study phase. CONCLUSION:Short-term treatment with omeprazole does not interfere with the pharmacokinetics of amoxicillin or ampicillin. Our results also exclude the presence of a transfer mechanism for amoxicillin or ampicillin from the plasma to the gastric lumen.
journal_name
Aliment Pharmacol Therjournal_title
Alimentary pharmacology & therapeuticsauthors
Ortiz RA,Calafatti SA,Corazzi A,Souza JM,Deguer M,De Souza CA,Marchioretto MA,Bernasconi G,Ferraz JG,Pedrazzoli J Jrdoi
10.1046/j.1365-2036.2002.01262.xsubject
Has Abstractpub_date
2002-06-01 00:00:00pages
1163-70issue
6eissn
0269-2813issn
1365-2036pii
1262journal_volume
16pub_type
临床试验,杂志文章,随机对照试验abstract:BACKGROUND:Immunosuppressive therapy with azathioprine and mercaptopurine is commonly used in patients with various chronic diseases. The few existing data on the reproductive safety of these drugs after paternal use before conception are inconclusive. AIM:To examine the risk of congenital abnormalities in children fa...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
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abstract:BACKGROUND:Fistulae will develop in approximately one-third of patients with Crohn's disease. With an expected spontaneous healing rate of only 10%, fistulizing Crohn's disease requires a comprehensive strategy with a medical and possible surgical approach. AIM:To summarize the current literature evaluating various me...
journal_title:Alimentary pharmacology & therapeutics
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journal_title:Alimentary pharmacology & therapeutics
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abstract:BACKGROUND:A novel potassium-competitive acid blocker, DWP14012, is in clinical development as a potential alternative to proton pump inhibitors for the treatment of acid-related diseases. AIMS:To evaluate the safety, tolerability, pharmacodynamics and pharmacokinetics of DWP14012 in humans. METHODS:A randomised, dou...
journal_title:Alimentary pharmacology & therapeutics
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abstract:BACKGROUND:The epidemiology and pathophysiology of non-erosive gastro-oesophageal reflux disease differs from erosive gastro-oesophageal reflux disease. There is a possibility that non-erosive gastro-oesophageal reflux disease treatment requires a different regimen/approach but it is not yet acknowledged. AIM:To inves...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2005-06-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
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journal_title:Alimentary pharmacology & therapeutics
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
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更新日期:2013-08-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-06-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2013-09-01 00:00:00