Improving Stability and Dissolution of Amorphous Clofazimine by Polymer Nano-Coating.

A pharmaceutically acceptable polymer, alginate, is coated on amorphous clofazimine by electrostatic deposition and effectively inhibits its surface crystallization and enhances its dissolution rate. This is the first time the nano-coating technique is applied to a basic drug using the principle of electrostatic deposition, demonstrating the generality of the approach.