Powdery preparation of amorphous dihydropyridine compound.

摘要

A powdery preparation of amorphous 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3-methoxycarbonylpyridine-5 -carboxyli c acid 6-(5-phenyl-3-pyrazolyloxy)hexyl ester is provided. The compound has a long-lasting hypotensive effect and the bioavailability of the compound is improved in oral administration by converting the solid structure of the preparation from a crystalline form to an amorphous form.