Solubility Enhancement of Clozapine by Co-crystals

Abstract

Cocrystallization of drug with coformers is a promising approach to alter the solid state properties of drug substances like solubility and dissolution. The objective of the present work was preparation, formulation and evaluation of the clozapine cocrystal by screening various coformers. Clozapine co-crystals were prepared using different coformers like benzoic acid, fumaric acid, sodium saccharin and sodium acetate. Cocrystals were prepared using solvent evaporation method and solvent drop grinding method. The prepared co-crystals were evaluated for saturation solubility, drug content, dissolution studies, XRD studies and DSC analysis.