Modified carrier particles for use in dry powder inhalers
US6641844B1 · kind B1 · utility
7Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Sep 27, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/145
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to carrier particles for use in pharmaceutical compositions for the pulmonary administration of medicaments by means of dry powder inhalers. In particular, the invention relates to a novel technological process for obtaining a carrier modified so as to improve the efficiency of redispersion of active particles and hence increase the respirable fraction. After the treatment of the invention, the surface of said modified carrier particles can also be coated with a suitable additive so as to further improve the respirable fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.