Multi-purpose anti-itch treatment
US9011934B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2013 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There is disclosed a formulation of a transdermal skin treatment effective in inhibition of itch sensation. In an embodiment, the formulation includes a solvent mixture of alcohols, glycols and water combined to provide a solubility parameter between 20 Pa0.5 and 40 Pa0.5, the solvent mixture having an average normal boiling temperature of at least 100° C., the solvent mixture having at least 0.04 mols/liter of multivalent cations, the solvent mixture containing at least one local anesthetic, and the solvent mixture having pH exceeding 8.0, with a thixotropic flow characteristic accomplished by an organic gellant. Other embodiments are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.