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Iatreia ; 22(3): 205-212, sept. 2009. tab, graf
Article in Spanish | LILACS | ID: lil-554009

ABSTRACT

Dos formulaciones de oxcarbazepina (Trileptal®, Novartis, y Oxcarbazepina®, Tecnoquímicas S. A.), previamente demostradas como equivalentes farmacéuticos, fueron evaluadas en cuanto a bioequivalencia por medio de un estudio aleatorizado, cruzado, en dos períodos, con dosis oral única de 1.200 mg, en 24 hombres adultos voluntarios sanos entre 18-35 años. Se evaluaron los siguientes parámetros farmacocinéticos: Área bajo la curva (AUC), Concentración máxima (Cmáx) y Tiempo para alcanzar la concentración máxima (Tmáx). Hubo un intervalo de lavado de siete días entre los dos períodos. Las concentraciones plasmáticas se evaluaron por HPLC/UV con el método de la adición estándar. No se encontraron diferencias significativas entre las dos preparaciones. Se concluyó que las dos preparaciones son equivalentes farmacéuticos y bioequivalentes y que, en consecuencia, son intercambiables para propósitos terapéuticos.


Two formulations of oxcarbazepine (Trileptal®, Novartis, y Oxcarbazepina®, Tecnoquímicas S. A.), previously shown to be pharmaceutical equivalents, were evaluated concerning their bioequivalence by means of a randomized, crossover, single oral dose (1.200 mg), two-period study in 24 healthy adult males. The following pharmacokinetic parameters were determined: Area under the curve (AUC), Maximal concentration (Cmax), and Time to reach maximal concentration (Tmax). There was a wash-out interval of seven days between the two periods. Plasmatic concentrations of the drug were measured with HPLC/UV with standard addition. No significant differences were found between the two preparations. It was concluded that they are pharmaceutical equivalents as well as bioequivalent. Consequently, they are interchangeable for therapeutic purposes.


Subject(s)
Anticonvulsants/pharmacology , Therapeutic Equivalency
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