Method of preparing sustained release pharmaceutical compositions
US5849240A · kind A · utility
316Cited by
69References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1996 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Feb 27, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/485
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for the manufacture of particles comprises mechanically working a mixture of a drug and a hydrophobic and/or hydrophilic fusible carrier in a high speed mixture so as to form agglomerates, breaking the agglomerates to give controlled release particles and optionally continuing the mechanical working with the optional addition of a low percentage of the carrier or diluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.