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.
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