Film preparation and process for preparing the same
US8354393B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2011 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An object is to provide a film preparation comprising a polymer harmless to living bodies and being highly adhesive to the skin; and a film preparation further containing a pharmaceutically active oily ingredient and being highly adhesive to the skin. More specifically, provided is a film preparation comprising a drug, a wetly shear-triturated low-substituted cellulose ether having a molar substitution of from 0.05 to 1.0 per anhydrous glucose unit, and a water-soluble cellulose ether, and having 100 minutes or greater of adhesion ability to the skin. The preparation becomes a skin-adhesive hydrous sheet having excellent skin adhesion after it is wet with water as it is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.