Sustained release pharmaceutical dosage forms with minimized pH dependent dissolution profiles
US6287599A · kind A · utility
145Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Dec 20, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical composition comprising at least one pharmaceutically active agent that is pH dependent, at least one non-pH dependent sustained release agent, and at least one pH dependent agent that increases the dissolution rate of the at least one pharmaceutically active agent at a pH in excess of 5.5. Such compositions have minimized pH-dependent dissolution profiles or pH-independent dissolution profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.