Film applicable to oral mucosa and drug preparation comprising the same
US5166233A · kind A · utility
133Cited by
1References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 31, 1990 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Jan 31, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/006
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A soft film applicable to the oral mucosa and a drug preparation comprising said film are disclosed, the film comprising a homogeneous mixture comprising a vinyl acetate homopolymer, an acrylic acid polymer, and a cellulose derivative capable of being dissolved in or swollen with water and a lower alcohol. The film or preparation is less causative of an adverse feeling on application to the oral mucosa, excellent in shape retention on water absorption, and adhesive to the oral mucosa for an extended period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.