Gastric preparation with sustained release
US5368861A · kind A · utility
33Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Apr 24, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/4808
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A gastric preparation developed in order to solve the technical problems of conventional preparations, which is prepared by the bilayer packing technique and comprises 5 to 60%, desirably 10 to 40% of a rapid release portion which can establish the therapeutic level of a drug shortly after the administration and 95 to 40%, desirably 90 to 60% of a sustained release portion which has a specific gravity or 1 or less and can maintain a satisfactory release rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.