Method for producing composition for external use containing physiologically acceptable salt of tranexamate
US9833401B2 · kind B2 · utility
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Key dates
| Filing date | Jul 15, 2011 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Aug 21, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/805
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for external use containing a tranexamate as an active ingredient with suppressed sticky or oily feeling but having a fresh feel of use, and a method for producing the same. A tranexamate salt can be dispersed stably in an aqueous medium by (a) dissolving the tranexamate salt and an amphiphilic polymer in water, a water-soluble organic solvent or a mixture thereof; and (b) adding a mixed solution obtained in the step (a) to an aqueous medium, and thus keeping the tranexamate salt in molecular assembly particles formed of the amphiphilic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.