Quick-dissolution solid preparation
US5624687A · kind A · utility
51Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1993 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Oct 15, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1676
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a solid preparation having a quick and pH-independent dissolution with an excellent bioavailability for a drug that is otherwise sharply depressed in solubility with pH elevation. This solid preparation contains granules each comprising a fine particulate core coated with a solid solution comprising a drug which is pH-dependent in solubility and may be released from an enteric base-containing composition at low pH and an enteric base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.