Formulation for preparing sustained release drugs for oral administration
US5047248A · kind A · utility
36Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Feb 8, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2059
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pharmaceutical formulations are disclosed, adapted for preparing solid oral dosage forms (tablets, capsules, lozenges, etc.) having a regular and sustained release after administration. Said formulations comprise one or more active substances and a retarding base or matrix consisting of a polysaccharide of natural origin, alone or mixed with one or more natural or synthetic polymers which may be used to modify the release pattern so as to obtain a therapeutically effective formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.