Pharmaceutical tablet capable of liberating one or more drugs at different release rates
US5738874A · kind A · utility
149Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1995 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Mar 24, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pharmaceutical tablet consisting of a first layer containing one or more drugs with immediate or controlled release formulation, a second layer containing one or more drugs, either equal to or different from the first layer, with slow release formulation, and a low-permeability barrier-type layer coating said second layer or, alternatively, placed between the first and second layer and, if necessary, containing a drug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.