Method of preparing a freeze-dried formulation containing a drug
US5044091A · kind A · utility
20Cited by
3References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/19
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In a freeze-drying method for producing a dried pharmaceutical compound or preparation, a first liquid is frozen, a second liquid is added to the frozen first liquid and is frozen thereon, and the frozen first and second liquids are freeze-dried together, in which at least one of said first and second liquids contains said pharmaceutical compound of preparation dissolved or suspended therein. The other liquid or liquids may be pure solvent (generally water) or may contain one or more other substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.