Artículos de revistas
Preparation and in vitro and in vivo evaluation of glipizide mucoadhesive microspheres using factorial design
Hosmani, Avinash H.
Kasture, Pramod V.
The purpose of the research was to prepare controlled release glipizide mucoadhesive microspheres with a coat consisting of sodium alginate and a mucoadhesive polymer Carbopol 971P. Orificeionic gelation method by using 3<sup>2</sup> factorial design were investigated with a view to develop mucoadhesive microspheres of controlled release. The resulting microspheres were discrete, free flowing, spherical and multinucleate monolithic type. Microencapsulation efficiency was in the range of 56-88%. Microspheres exhibit good mucoadhesive property in the falling film test. Glipizide release from the mucoadhesive microspheres was slow and extended over long period of time. Drug release was non-Fickian type. The concentration of carbopol 971P and sodium alginate had a more significant effect on different variables. In-vivo testing demonstrated a significant hypoglycemic effect of glipizide