Patent · US Active

Solid dosage forms comprising an enteric coating with accelerated drug release

US9597293B2 · kind B2 · utility

3Cited by

5References

11Claims

0Family size

Assignee

Evonik Röhm GmbH · DE

Inventors

Fang-Wei Liu · London, GB
Abdul Waseh Basit · Harrow, GB
Rosario Lizio · Dieburg, DE
Hans-Ulrich Petereit · Darmstadt, DE
Christian Meier · Darmstadt, DE
Michael Damm · Rödermark, DE

Key dates

Filing date	May 7, 2007
Grant date	Mar 21, 2017
Priority date	—
Expiry date	Nov 30, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/5026
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention provides a solid dosage form including an inner coating located between a core containing a pharmaceutically active ingredient and an outer enteric coating; wherein the inner coating includes a partially neutralized anionic polymeric material, and at least a carboxylic acid having 2 to 16 carbon atoms the salts thereof or mixtures of the acid and its salt; wherein the outer coating includes an anionic polymeric material which is less or not at all neutralized than the material of the inner coating.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.