[논문]Solid dispersion of efavirenz in PVP K-30 by conventional solvent and kneading methods

Alves, L.D.S.; de La Roca Soares, M.F.; de Albuquerque, C.T.; da Silva, E.R.; Vieira, A.C.C.; Fontes, D.A.F.; Figueiredo, C.B.M.; Soares Sobrinho, J.L.; Rolim Neto, P.J.

doi:10.1016/j.carbpol.2014.01.027

Solid dispersion of efavirenz in PVP K-30 by conventional solvent and kneading methods

Carbohydrate polymers, v.104, 2014년, pp.166 - 174

Alves, L.D.S. , de La Roca Soares, M.F. , de Albuquerque, C.T. , da Silva, E.R. , Vieira, A.C.C. , Fontes, D.A.F. , Figueiredo, C.B.M. , Soares Sobrinho, J.L. , Rolim Neto, P.J.

Abstract ▼ AI-Helper

Efavirenz (EFV) used as a part of the treatment of first choice in antiretroviral therapy for AIDS has low aqueous solubility and presents problems of absorption. We thus initially present a phase solubility diagram with carriers of different classes. With a view to obtaining a solid dispersion (SD) with suitable consistency to that of a solid formulation, we chose to use PVP K-30, since polymers present some of the best results. The kneading (KN) and solvent evaporation (EV) methods were thus used at different rates. These were characterized by the way of DSC, FT-IR, SEM, DR-X and dissolution. SD EV proved unsatisfactory, resulting in a decreased dissolution rate, despite the amorphous state of the samples, while the SD KN 4:1 (EFV:polymer) and physical mixtures (PM) had a higher rate of dissolution. SD KN and PM 4:1 were also evaluated for stability after storage, with benefits being observed in relation to EFV.

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참고문헌 (23)

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Solid dispersion of efavirenz in PVP K-30 by conventional solvent and kneading methods

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