Gel-forming liquid carrier composition
US5492937A · kind A · utility
41Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1993 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | May 21, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q11/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A carrier composition that is a liquid at or below room temperature forms a high viscosity layer or gel at body temperature, which comprises a water-soluble, nonionic cellulose ether having a cloud point not higher than 40.degree. C., a charged surfactant and optional additives in water. The carrier composition can be used for oral or local administration of a pharmacologically active substance to the skin, mucous membrane, the eye or a body cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.