Fatty acid esters of lactic acid salts as permeation enhancers
US5952000A · kind A · utility
89Cited by
31References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 29, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Oct 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A transdermal drug delivery system which enhances the delivery of the drug comprises a composition containing, as an enhancer, one or more C.sub.6 to C.sub.22 fatty acid esters of a lactic acid salt. These compositions are made up of a safe and effective amount of an active pharmaceutical permeant contained in a penetration-enhancing vehicle comprising, 0.25 to 50% w. of the fatty acid ester of a lactic acid salt enhancer in a suitable pressure sensitive adhesive carrier vehicle formed from and aqueous emulsion based pressure sensitive adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.