Drug particles from freezing onto a surface
US9175906B2 · kind B2 · utility
11Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2003 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Apr 12, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5089
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is a method for preparing micron-sized or submicron-sized drug particles comprising contacting a solution comprising a poorly water soluble drug substance and at least one freezable organic solvent with a cold surface so as to freeze the solution; and removing the organic solvent. The resulting particles are also disclosed, as are several embodiments of an apparatus that can be used in performing the method of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.