Process for the preparation of medications in the form of pearls
US5188838A · kind A · utility
45Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1694
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Process for the preparation of pearls based on a pharmaceutical active substance exhibiting an indefinite crystallization point. The said active substance is mixed in molten form which a pharmaceutical excipient promoting the solidification of the active substance, the melt is forced to pass through a nozzle which is subjected to a vibration, the pearls formed are allowed to fall in a tower countercurrentwise to a gas, and the pearls formed are collected in the bottom of the tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.