Long shelf life tablet containing hydrolysis prone active ingredient
US4786507A · kind A · utility
20Cited by
0References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Mar 31, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2086
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to a pharmaceutical tablet containing active substance prone to hydrolysis and having a long shelf life which comprises (1) one or more layers free from active substance and (2) a layer containing said active substance in a concentration sufficient to inhibit hydrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.