O/W emulsion composition
US6432439B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Apr 3, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/107
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An O/W emulsion composition comprising fluorometholone or clobetasone butyrate, a phospholipid, an oil, a nonionic water-soluble cellulose derivative, and water. The O/W composition has advantages that fluorometholone or clobetasone butyrate contained therein is highly bioavailable and that the solubility of fluorometholone or clobetasone butyrate and the concentration thereof present in the composition can be kept stable. Thus, this composition is usable for the treatment of various inflammatory diseases by the generalized or local administration thereof. It provides a drug which shows an anti-inflammatory activity equal or higher than that of commercially available eye drops comprising a suspension of such an active ingredient even when it is applied in a smaller dose than that of commercially available one and further provides a drug having excellent storability, which reduces apprehension of systemic side effects of fluorometholone or clobetasone butyrate when it is applied to the eyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.