Method and preparation for administration to the mucosa of the oral or nasal cavity
US4226848A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1979 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Mar 2, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/38
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for administering a medicament which comprises adhering to the mucosa of the oral or nasal cavity a pharmaceutical preparation comprising PA0 (a) a water-swellable and mucosa-adhesive polymeric matrix comprising about 50 to about 95% by weight of a cellulose ether and about 50 to about 5% by weight of a homo- or copolymer of acrylic acid or a pharmaceutically acceptable salt thereof, and PA0 (b) dispersed therein, pharmaceutically effective amount of the medicament, said preparation releasing continuously the medicament at a controlled rate; and causing the released medicament to be absorbed through the mucosa or enterally; said mucosa-adhesive preparation; and process for said preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.