Patent · US Expired

Use of combinations gelling polysaccharides and finely divided drug carrier substrates in topical ophthalmic compositions

US5212162A · kind A · utility

317Cited by

9References

27Claims

0Family size

Assignee

Alcon Laboratories, Inc. · US

Inventors

Paul J. Missel · Arlington, US
John C. Lang · Arlington, US
Rajni Jani · Fort Worth, US

Key dates

Filing date	Mar 25, 1992
Grant date	May 18, 1993
Priority date	—
Expiry date	Mar 25, 2012

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K47/61
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Ophthalmic compositions comprising combinations of gelling polysaccharides and finely-divided drug carrier substrates which become relatively more viscous on contact with the eye are disclosed. These ophthalmic compositions are both comfortable and long-lasting Ophthalmic compositions further comprising a pharmaceutically active drug are also disclosed, as are methods of use.

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