Sustained release oral suspensions
US4999189A · kind A · utility
75Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1988 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Nov 14, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/585
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Stable sustained release wax- and polymer-coated drug-ion exchange resin complexes especially useful in preparing oral suspensions are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.