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Brazilian Journal of Pharmaceutical Sciences

versão On-line ISSN 2175-9790


MONTOVANI, Patrícia Andréa Bertuol et al. Bioavailability of two oral formulas of secnidazole in healthy volunteers. Braz. J. Pharm. Sci. [online]. 2009, vol.45, n.4, pp.687-692. ISSN 2175-9790.

Secnidazole is an antimicrobial agent used primarily in the treatment of amoebiasis. For this bioequivalence study of secnidazole, twenty-eight healthy female volunteers were enrolled in a randomized crossover study. Each volunteer was given a single oral dose of secnidazole test preparation and then the reference preparation, or vice versa, with a wash out interval of two weeks. The plasma concentrations of secnidazole were determined by HPLC, and the samples were extracted with tert-butyl-methyl-ether: dicloromethane (60:40, v/v). Secnidazole and its parent compound metronidazole were separated on a C18 column with water:acetonitrile (85:15, v/v) as the mobile phase, and monitored at 310 nm. The ratio of mean Cmax, AUC0-t and AUC0-∞ values for the test and reference products were within the predetermined range established by ANVISA, demonstrating that the two formulations are bioequivalent in rate and extent of absorption.

Palavras-chave : Oral formulas [bioequivalence study]; Secnidazole [bioavailability]; Antimicrobials [bioavailability].

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