Pharmaceutical compositions containing buffered ortho ester polymers
US6440460B1 · kind B1 · utility
25Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1998 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jul 27, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical composition for the controlled release of therapeutic agents from carboxylic acid ortho ester polymers contains a pharmaceutically acceptable salt of an acid, which together with the acid R1-COOH liberated from the decomposition of the ortho ester polymer forms a buffer system in a physiologically acceptable pH range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.