PREPARATION OF DRUG HAVING ENTERIC COATING

PURPOSE:To prepare the titled drug without using an organic solvent, by using a solution obtained by dissolving an enteric cellulose derivative in an alkaline aqueous solution, and adding a carboxylic acid to the solution. CONSTITUTION:An enteric cellulose derivative such as hydroxypropyl methyl cel...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAGURA SHIGEHIRO, MARUYAMA KAZUMASA, MINEMURA KATSUYOSHI, MUTOU YASUAKI, CHIBA TOORU
Format: Patent
Sprache:eng
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