Pharmaceutical compositions comprising silica microspheres
US8920821B2 · kind B2 · utility
3Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2007 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Aug 19, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a topical composition which includes a bioactive drug formulated with silica in the form of microspheres, or drugs in a combination with the silica microspheres in an oily suspension, gel or emulsion. The topical compositions of the invention provide sustained release of a bioactive drug so as to reduce skin irritation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.