Topical drug release system
US5174995A · kind A · utility
14Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1987 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Dec 10, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q11/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A topical composition containing a dissolved drug or the like (e.g. hydrocortisone acetate) preferably in saturated solution, and a solubilizer (e.g. propylene glycol), and preferably water and an antinucleant, is applied to a water-wetted area of the body, such as the hair or scalp, such that, on mixing with the body water, the resultant drug concentration exceeds the saturated drug solubility in the initially formed resultant mixture, thus giving a supersaturated drug composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.