Sustained release emulsions
US5977171A · kind A · utility
7Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0048
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Ophthalmic methods and compositions are disclosed where particles of the dispersed phase of emulsions are themselves dispersed and stably maintained in physical separation by lightly crosslinked, water swellable polymers present in an aqueous polymeric system formulated for administration to the eye in drop or ribbon form. Medicament is dissolved in that dispersed phase is delivered over a sustained release period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.