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Preparation and evaluation of colon targeted drug delivery systems for albendazole using kneading,extrusion and compaction technology

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药学学报 2009年第10期44卷 1152-1158页

作者： Martins EMEJE Phyllis NWABUNIKE yetunde isimi Olobayo KUNLE Sabinus OFOEFULE Department of Pharmaceutical Technology and Raw Materials Development National Institute for Pharmaceutical Research and Development Department of Pharmaceutical Technology and Industrial Pharmacy University of Nigeria

Albendazole is an orally administered broad-spectrum benzimidazole anthelmintic used against helminthiasis,hydatid cyst disease and *** objectives of this investigation are to develop a sustained release drug delivery system for albendazole,and to target its delivery to *** matrix tablets containing varying proportions of single and binary blends of four polymers;polyacrylic acid(carbopol 971),ethylcellulose(Etcell),eudragit L100-55(EUD),and sodium carboxymethyl cellulose(CMC) were prepared by a modified wet granulation technique of kneading,extrusion and *** vitro release profiles of albendazole was sequentially determined in simulated gastric fluid(SGF),simulated intestinal fluid(SIF) without enzymes and in rat caecal content medium(RCCM) at 37 ℃.The in vitro drug release from matrix tablets containing CMC and Etcell as single polymers showed initial burst effect in the first 2 h(>20% and 50% respectively),followed by a slow release in ***,matrix tablets containing polymer blends showed that no appreciable drug release occurred up to 5 *** release from tablets containing polymer blends in the dissolution medium containing rat caecal material suddenly increased to ≥30% after 5 h(RCCM),and reaching up to 90% in 24 *** matrix tablets containing carbopol 971,Etcell,EUD,and CMC as single polymers and as blends were formulated for oral *** release from the tablet matrices containing carbopol alone,binary blends of carbopol/Etcell,and CMC/EUD were found to be very slow and dependent on polymer *** tablets containing blends of these polymers formulated using kneading,extrusion and compaction technique could provide sustained drug release and can be utilized in the colonic delivery of albendazole.

关键词：制剂学药学医学蠕虫病

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