PHARMACEUTICAL PREPARATIONS CONTAINING NIFEDIPINE AND PROCESS FOR PRODUCING IT

摘要

The present invention relates to novel long-acting pharmaceutical preparations containing 1,4-dihydro-2,6-dimethyl-4-)o-nitrophenyl)-3,5-pyridine-dicarboxylic acid-dimethyl ester (Nifedipine) as the active substance with a specific area in the range between 0.2 and 0.5 m<2>/g and the use of this active substance and a process for producing these long-acting preparations.