Ophthalmic compositions containing copolymers of sulfonated styrene and maleic anhydride
US6743439B1 · kind B1 · utility
28Cited by
8References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0048
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Aqueous pharmaceutical solution compositions preserved with a cationic preservative and comprising a cationic drug and a sulfonated styrene/maleic anhydride copolymer are disclosed. The compositions are particularly well suited for topical ophthalmic use, but may also be used as topically administrable otic or nasal compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.