Intermolecular interaction as a direct measure of water solubility advantage of meloxicam cocrystalized with carboxylic acids.

ABSTRACT: The solubility advantage (SA) of meloxicam cocrystalized with mono- and dicarboxylic acids was expressed in terms of equilibrium constants involving active pharmaceutical ingredient and coformer in aqueous solutions. It is argued that SA can be quantified by concentration of pairs formed in water. The pH and concentration of dissolved components is included explicitly in the model. The alternative behavior of mono- and dicarboxylic acids was emphasized and addressed to different structural motifs. The structural and energetic properties of meloxicam and its complexes with carboxylic acids were characterized, including tautmerism and dissociation in aqueous media. In particular, performed in silico modeling confirmed experimental observation that meloxicam dissolved in water or modest acidi

SUBMITTER: Cysewski P 

PROVIDER: S-EPMC5911280 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature