Bibliographic citations
Gutierrez, R., (2024). Bioequivalencia in vitro de medicamentos genéricos de metformina clorhidrato de 850 mg comercializados en el distrito del Cusco en comparación con el medicamento innovador, 2023 [Universidad Andina del Cusco]. https://hdl.handle.net/20.500.12557/6956
Gutierrez, R., Bioequivalencia in vitro de medicamentos genéricos de metformina clorhidrato de 850 mg comercializados en el distrito del Cusco en comparación con el medicamento innovador, 2023 []. PE: Universidad Andina del Cusco; 2024. https://hdl.handle.net/20.500.12557/6956
@phdthesis{renati/958065,
title = "Bioequivalencia in vitro de medicamentos genéricos de metformina clorhidrato de 850 mg comercializados en el distrito del Cusco en comparación con el medicamento innovador, 2023",
author = "Gutierrez Chavez, Roger Giancarlo",
publisher = "Universidad Andina del Cusco",
year = "2024"
}
The purpose of research work was to carry out a comparative biopharmaceutical study of metformin tablets through an in vitro bioequivalence of 5 generic drugs containing metformin hydrochloride 850 mg with nomenclature B, C, D, E and F compared to the reference drug Glucophage 850 mg (Merck). The work was based on dissolution profiles in different media according to the methodology suggested by the FDA "Waiver of in vivo bioavailability and bioequivalence studies for immediate-release solid oral dosage forms based on a Biopharmaceutics Classification System" which were hydrochloric acid pH 1.2, acetate buffer pH 4.5 and potassium phosphate pH 6.8, all this under an independent model of similarity factor (F2) and difference factor (F1). For the performance tests such as dissolution, content titration, we worked based on USP 40; the results obtained for the dissolution tests of generic drugs B, C, D, E and F and reference drug met the specification of a percentage of not less than 75% (B=94. 02, C=99.74, D=94.78, E=99.55, F=95.01 and A=97.40), for the content assessment the specification of 95 to 105 % which were met for both generic samples and reference drug (B=96.38, C=98.76, D=100.34, E=99.48, F=99.01 and A=98.74). The acceptable results for the in vitro bioequivalence test for the difference factor (f1: 0 to 15) at pH 4.5 were 14.43 for sample E, 12.14 for sample F, at pH 6.8 12.34 for sample C and 13.47 for sample F respectively; for the similarity factor (f2: 50 to 100) at the different pHs, no generic sample complied with the specification proposed by the FDA.
This item is licensed under a Creative Commons License