AMORPHOUS LERCANIDIPINE HYDROCHLORIDE AND PHARMACEUTICAL COMPOSITION BASED THEREON

摘要

The invention provides a substantially pure amorphous lercanidipine hydrochloride having a purity of at least 95 % pure, preferably at least about 97 % pure, more preferably at least about 99 % pure, and still more preferably at least about 99.5 % pure. The invention further provides methods of preparing substantially pure amorphous lercanidipine, and pharmaceutical compositions containing the substantially pure amorphous lercanidipine.