Microfibrous Solid Dispersions of Poorly Water-Soluble Drugs Produced via Centrifugal Spinning: Unexpected Dissolution Behavior on Recrystallization

Dissolution Behavior and Thermodynamic Stability of Fused-Sugar Dispersions of a Poorly Water-Soluble Drug

The current research was undertaken to develop and evaluate dissolution profiles of thermodynamically stabilized sugar dispersions of the poorly water-soluble, model drug etoricoxib (ETX). Fused-sugar dispersions were formulated using sorbitol, xylitol, and maltose separately, and the binary systems were stabilized by incorporation of the antiplasticizing agents poloxamer 407 and PVP K30 to obt...

Solid Dispersions: An Overview To Modify Bioavailability Of Poorly Water Soluble Drugs

Solubility Enhancement of Poorly Water Soluble Drugs by Solid Dispersion

Solid dispersions have been employed to enhance the dissolution rates of poorly water-soluble drugs. Many approaches have been investigated for the preparation of solid dispersions. This paper reports the various solubility enhancement strategies in solid dispersion. The approaches described are fusion (melting), solvent evaporation, lyophilization (freeze drying), melt agglomeration process, e...

Improved dissolution of a poorly water soluble drug in solid dispersions with polymeric and non-polymeric hydrophilic additives.

Irbesartan (IBS) is a hydrophobic drug with poor aqueous solubility and dissolution rate. Solid dispersions (SDs) of IBS were prepared with both small molecules (tartaric acid and mannitol) and polymeric additives (polyvinyl-pyrrolidone, PVP, and hydroxypropyl methylcellulose, HPMC). A 9.5 and 7 folds enhancement in solubility over the crystalline form (14.6 microg mL-1) was observed for tartar...

The Effect of PEG Molecular Weights on Dissolution Behavior of Simvastatin in Solid Dispersions

The purpose of the present study was to investigate the effect of polyethylene glycol (PEG) molecular weights (6000, 12000 and 20000) as solid dispersion (SD) carriers on the dissolution behavior of simvastatin. SDs with various drug : carrier ratios were prepared by solvent method and evaluated for dissolution rate. Differential scanning calorimetry (DSC), X-ray diffraction (XRD), infrared spe...