Powder formulation
US7344734B2 · kind B2 · utility
52Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2002 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Aug 19, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a powder formulation for administration by inhalation comprising an active substance and a pharmaceutically acceptable excipient, which composition has the form of a physical mixture and comprises from 5 to 25 wt. % of the excipient, and wherein the active substance has a particle size distribution of from 0.5 to 10 μm, and wherein the excipient has a particle size distribution of from 15 to 500 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.