Topical and transdermal delivery system utilizing submicron oil spheres
US6004566A · kind A · utility
70Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1993 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Mar 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/926
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a delivery system which includes a bioactive drug or cosmetic substance presented in the form of submicron oil spheres alone, or drugs or cosmetic substances in a combination with the oil spheres in an aqueous suspension or emulsion. Optionally, a skin penetration enhancer may be included in such formulations. Such preparations achieve improved bioavailability and exert larger pharmacological effects than an equivalent dose of the drug or cosmetic formulated in conventional creams, lotions or oleaginous bases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.