Solubilizer and external preparations containing the same
US5725874A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1995 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Nov 16, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Percutaneously absorbable preparations which comprise, by weight, 0.001 to 20%, preferably 0.1 to 20%, of 3-l-menthoxy-propane-1,2-diol as a solubilizer for a drug and 0.001 to 20%, preferably 0.5 to 10%, of the drug as two essential ingredients, the balance being other ingredients as adjuvants selected from water-soluble polymers, monohydric alcohols, polyhydric alcohols, rosin esters, water, fatty acid esters, hydrocarbons, softening agents, emulsifying agents. The preparations are in the forms of poultice, plasters, ointments, gels, creams, gel-like creams, lotions, reserver patches, liniments, aerosols and may be used in packs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.