Issue |
Parasite
Volume 10, Number 4, December 2003
|
|
---|---|---|
Page(s) | 371 - 373 | |
DOI | https://doi.org/10.1051/parasite/2003104371 | |
Published online | 25 August 2014 |
Mémoire
Effect of two formulations of benzimidazole carbamates on the viability of cysts of Echinococcus granulosus in vivo
Effet de deux formulations de carbamates de benzimidazole sur la viabililité des kystes d'Echinococcus granulsus in vivo
1
Departamento de Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid. Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
2
Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid. Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
* Correspondence : Francisco Ponce Gordo. Tel. : +34 1 394 18 17 - Fax : +34 1 394 18 15 E-mail : pponce@farm.ucm.es
Received:
27
February
2003
Accepted:
9
September
2003
Two different preparations, solution and suspension, of three benzimidazole carbamate drugs, mebendazole, albendazole and ricobendazole, were compared by analyzing their in vivo activity against Echinococcus granulosus cysts in a mouse model. Polyvinylpyrrolidone was used for the elaboration of drug solutions and these formulations manifested better results in terms of reduction of number of viable hydatid cysts in mice than the reference drug suspensions. The effect was more prominent on mebendazole-treated mice, at doses of 25-50 mg/kg. There was a correlation between ED50 and pharmacokinetical parameters of AUC0∞ and Cmax , showing that a significant improvement on solubility affects the in vivo activity of these drugs.
Résumé
Deux préparations différentes, solution (PVP) et suspension (CMC), de trois carbamates de benzimidazole, mebendazole, albendazole et ricobendazole, ont été comparées en mesurant leur activité in vivo vis-à-vis des kystes d'Echinococcus granulosus dans un modèle murin. La polyvinylpyrrolidone a été employée pour l'élaboration des solutions de principes actifs, et ces formulations ont montré de meilleurs résultats en termes de réduction du nombre de kystes viables chez les souris que les suspensions du médicament de référence. L'effet était plus important sur les souris [PVP-mebendazole] traitées aux doses de 25-50 mg/kg. Il existe une corrélation entre les ED50 et les paramètres pharmacocinétiques d'AUC0-∞ et Cmax, prouvant qu'une amélioration significative de la solubilité du principe actif affecte l'activité in vivo de ces médicaments.
Key words: Echinococcus granulosus / hydatid cyst / albendazole / ricobendazole / mebendazole / efficacy / solid dispersion / in vivo
Mots clés : Echinococcus granulosus / kyste hydatique / albendazole / ricobendazole / mebendazole / efficacité / dispersion pleine / in vivo
© PRINCEPS Editions, Paris, 2003, transferred to Société Française de Parasitologie
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.