Patent · US Expired

Compressible sustained release solid dosage forms

US5135757A · kind A · utility

54Cited by
46References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 16, 1991
Grant dateAug 4, 1992
Priority date
Expiry dateJan 16, 2011

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K9/2018
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A free-flowing directly compressible granulation useful as a slow release pharmaceutical excipient is disclosed. The excipient includes a hydrodrophilic matrix which includes heteropolysaccharide and a polysaccharide material capable of cross-linking the heteropolysaccharide, and an inert diluent.

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