Ophthalmic compositions containing copolymers of sulfonated styrene and maleic anhydride
AssigneeAlcon Inc.
InventorsErnesto J. Castillo, Wesley Wehsin Han, Huixiang Zhang, Ronald F. Berry
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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.
Claims10
A preserved, aqueous pharmaceutical solution composition suitable for topical ophthalmic, otic or nasal use comprising a cationic drug, a cationic preservative, and a sulfonated styrene/maleic anhydride copolymer, wherein the drug is selected from the group consisting of betaxolol;
- levobetaxolol;
- ciprofloxacin;
- olopatadine;
- and their pharmaceutically acceptable salts.
Dependencies are inferred from the claim text.