Patent · US Expired

Melt granulated compositions for preparing sustained release dosage forms

US5403593A · kind A · utility

112Cited by
9References
23Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 31, 1992
Grant dateApr 4, 1995
Priority date
Expiry dateMar 31, 2012

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K9/2095
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Therapeutically active sustained release dosage forms are described which are prepared from compositions which comprise (A) a hydrophilic cellulose ether polymer or mixtures thereof as a binder matrix material, (B) a granulating medium selected from the group consisting of a lipid component, polyethylene glycol polymers, and mixtures thereof, said granulating medium having a melting range higher than about 30.degree. C., and (C) a therapeutically active medicament, said components being in melt association. The compositions are prepared by a melt granulation process.

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