a modified solvent method for preparation of solid dispersions

A Modified Solvent Method for Preparation of Solid Dispersions

      The first aim of the present investigation was to prepare solid dispersions to improve the dissolution properties of oxcarbazepine and quetiapine using PEG 6000 as a carrier with the help of two methods of preparations viz. spray drying and modified solvent method, and to compare the two methods. The second objective was to apply the modified solvent method for preparation of sustained re...

Preparation of Eudragit E100 microspheres by modified solvent evaporation method.

The objective of this investigation was to develop the hollow microspheres as a new dosage form of floating drug delivery system with prolonged stomach retention time. Hollow microspheres containing ranitidine hydrochloride were prepared by solvent evaporation method using Eudragit RLPO dissolved in a mixture of dichloromethane and ethanol. The maximum yield and drug loading amount of hollow mi...

Doctoral dissertation DROPPING METHOD AS A NEW POSSIBILITY IN PREPARATION OF SOLID DISPERSIONS

Development and physicochemical characterization of sirolimus solid dispersions prepared by solvent evaporation method.

PURPOSE The aim of the present investigation was preparation and characterization of sirolimus solid dispersions by solvent evaporation technique to improve its dissolution properties. METHODS Polyvinylpyrrolidone (PVP), Poloxamer 188 and Cremophore RH40 were used to prepare the solid dispersions of sirolimus. In vitro dissolution study using USP type I apparatus, were performed in distilled ...

Characterization of Olanzapine – Solid dispersions.

Aim: To enhance the aqueous solubility of olanzapine by using the Solid dispersion technique. Solid dispersions of Olanzapine were prepared by the dispersion method using using PGS and SSG as carriers. Drug:carrier ratios such as 1:1, 1:2, 1:4, 1:6, 1:8 and 1:10 were tried for optimization. Characterization was done by phase solubility, in vitro release, saturation solubility, permeation, wetta...

Preparation and evaluation of solid dispersions of cefpodoxime proxetil

Solid dispersions (SDs) are one of the most promising strategies to improve the oral bioavailability of poorly water soluble drugs. This technology is mainly applied to improve the solubility of Class II and Class IV drugs. Cefpodoxime proxetil (CP) is chosen as drug as it belongs to Class IV i. e. having low solubility and low permeability (Solubility: 400 μg/ml). SDs were prepared by using PV...