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1.
GEN ; 64(3): 221-227, sep. 2010. ilus, tab
Article in Spanish | LILACS | ID: lil-664500

ABSTRACT

Los IBP han demostrado ser fármacos relativamente seguros después de muchos años de una amplia utilización. Las reacciones adversas con las que más frecuentemente se han asociado son leves y con escasa repercusión clínica. Inducen hipergastrinemia pero esta no se ha relacionado con una capacidad para inducir lesiones malignas Parece que pueden facilitar determinadas infecciones bacterianas a nivel digestivo y del aparato respiratorio, aunque este hecho no limita su prescripción dada la facilidad de su tratamiento. Desde el punto de vista farmacocinético se han descrito la posibilidad de interacciones con otros fármacos a nivel del citocromo P450, pero ello no parece tener mayor trascendencia clínica y terapéutica en general. Sin embargo, recientemente se está incidiendo por las agencias reguladoras en la hipotética interacción de los IBP (sobre todo omeprazol) con el clopidogrel generando una reducción en su efecto antiagregante. Aunque se debe seguir esta recomendación, necesitaria ser evaluado de forma específica para poder determinar su realidad clínica y las posibles alternativas existentes en los pacientes con riesgo de sangrado gastrointestinal. En último lugar se revisa su administración en situaciones especiales, objeto de discusión, como en la mujer embarazada o durante la lactancia materna...


Subject(s)
Humans , Male , Female , Proton Pumps/administration & dosage , Proton Pumps/adverse effects , Proton Pumps , Headache/chemically induced , Constipation , Diarrhea , Gastroenterology , Pharmacology, Clinical
2.
Rev. méd. Chile ; 128(4): 367-77, abr. 2000. tab, graf
Article in Spanish | LILACS | ID: lil-263705

ABSTRACT

Background: Epidemiological differences suggest that treatments for H. pylori eradication should be locally validated. Aim: To perform a cost benefit study of different treatment options for H. pylori infection. Patients and methods: One hundred and sixty-seven patients with active duodenal ulcer and H. pylori infection who completed a 2-week treatment with one of the following regimens were included: famotidine plus amoxycillin plus metronidazole (FAM), omeprazole plus amoxycillin plus tinidazole (OAT) or lansoprazole plus clarithromycin plus amoxycillin in 3 (LAC1) or 2 (LAC2) daily doses. We compared efficacy, adverse effects and cost. Results: Eradication rate was 74.6, 72.9, 96.4 y 91.7 percent for FAM, OAT, LAC1 and LAC2 respectively (p<0.05). Direct cost ranged from US$ 50 for FAM to US$ 220 for LAC1. A decision analysis was carried out in a model including direct and indirect costs and considering retreatment with antibiotics after the first treatment failure and one-year treatment with H2-blockers in case of a second failure. FAM was selected as the most cost-effective option, with an estimated cost of about US$ 300 ñ 148 per patient. However, cost associated to LAC2 was very similar (US$ 320 ñ 58) and the lower standard deviation suggests less variation. Sensitivity analyses, considering reasonable fluctuation in parameters such as eradication rate, cost and follow-up period suggest that a regimen containing a proton pump inhibitor, clarithromycin and amoxycillin may be the most cost-effective treatment. Conclusions: These results should be confirmed in other settings, specially in ordinary clinical practice, far from clinical research


Subject(s)
Humans , Male , Female , Helicobacter pylori/drug effects , Helicobacter Infections/drug therapy , Urease , Famotidine/administration & dosage , Follow-Up Studies , Helicobacter Infections/diagnosis , Cost-Benefit Analysis , Proton Pumps/administration & dosage , Clarithromycin/administration & dosage , Drug Therapy, Combination/administration & dosage , Amoxicillin/administration & dosage , Lymphoma/microbiology , Drug Administration Schedule , Peptic Ulcer/microbiology
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