Ophthalmic composition
US5998488A · kind A · utility
40Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In an ophthalmic solution comprising an antimicrobial preservative having a quaternary ammonium type cationic group, there are blended a cyclodextrin, EDTA or its salt, and boric acid and/or borax. The solution has an excellent antimicrobial activity and is effective for inhibiting the antimicrobial preservative from adsorbing to contact lenses. It can be instilled to eyes with contact lenses on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.