Patent · US Expired

Polyethylene glycol matrix pellets for greasy, oily or sticky drug substances

US6555138B1 · kind B1 · utility

31Cited by

6References

15Claims

0Family size

Assignee

ASTRAZENECA AB · SE

Inventors

Christer Karlsson · Linköping, SE
Per Johan Lundberg · Mölndal, SE
Adam Rosinski · Umeå, SE
Malin Soderbom · Mölndal, SE

Key dates

Filing date	Jan 4, 1999
Grant date	Apr 29, 2003
Priority date	—
Expiry date	Jan 4, 2019

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/4422
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A drug delivery system for oral administration in solid dry form of greasy/oily/sticky substance(s) and pharmaceutically active substance(s) or pharmaceutically active substance(s) which itself/themselves is/are greasy/oily/sticky) characterized by having a plurality of solid, polymeric matrix beads comprising considerable amounts of greasy/oily/sticky substances and having fast release characteristics and a process for the preparation of such solid, polymeric matrix beads comprising greasy/oily/sticky substances.

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