Patent · US Expired

Sustained release dosage form based on highly plasticized cellulose ether gels

US4678516A · kind A · utility

70Cited by
7References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 9, 1984
Grant dateJul 7, 1987
Priority date—
Expiry dateOct 9, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S424/15
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A solid sustained release dosage form is disclosed comprising a gel matrix containing HPMC and a major amount of a plasticizer therefor into which gel matrix is reversibly dispersed a pharmaceutically active agent.

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