Aerosol formulations containing beclomethasone dipropionate-1, 1, 1, 2-tetrafluoroethane solvate
US5833950A · kind A · utility
23Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1997 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Jun 18, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/573
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to novel aerosol formulations for administering drugs, in particular, for the administration of a beclomethasone ester, by inhalation. In particular, the invention provides novel aerosol formulations consisting essentially of (a) beclomethasone dipropionate in the form of a solvate with 1,1,1,2-tetrafluoroethane (CF.sub.3 CH.sub.2 F) and one or more fluorocarbon or hydrogen-containing chlorofluorocarbon propellants, or (b) anhydrous beclomethasone dipropionate and 1,1,1,2,3,3,3-heptafluoro-n-propane as propellant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.