Slow release of organic salts of local anesthetics for pain relief
US8920843B2 · kind B2 · utility
2Cited by
32References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2008 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Mar 22, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Particles of an organic acid salt of an amino acid amide or ester local anesthetic are employed as agents for the improved alleviation of pain. Particularly, the particles find use with surgically created wounds, where the particles may be administered directly into the bed of the wound or topically for transdermal transport.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.