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Effect of Helicobacter pylori infection and acid blockade by lansoprazole on clarithromycin bioavailability
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Ortiz,R.A.M.; Calafatti,S.A.; Moraes,L.A.; Deguer,M.; Ecclissato,C.C.; Marchioretto,M.A.M.; Ribeiro,M.L.; Bernasconi,G.; Pedrazzoli Jr,J.
The effect of proton pump inhibitors and Helicobacter pylori infection on the bioavailability of antibiotics is poorly understood. We determined the effects of 5-day oral administration of 60 mg lansoprazole on the bioavailability of clarithromycin in individuals with and without H. pylori infection. Thirteen H. pylori-infected and 10 non-infected healthy volunteers were enrolled in a study with an open-randomized two-period crossover design and a 21-day washout period between phases. Plasma concentrations of clarithromycin in subjects with and without lansoprazole pre-treatment were measured by liquid chromatography coupled to a tandem mass spectrometer. Clarithromycin Cmax and AUC0-10 h were significantly reduced after lansoprazole administration. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clarithromycin; Helicobacter pylori; Lansoprazole; Peptic ulcer; Pharmacokinetics.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000300014