| 摘要 |
The present invention is related to aerosol formulations used in inhalation administered drugs. The formulations consist in (a) 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoro-n-propane or a mixture thereof as a propellant; (b) hexafluoropropane, specially 1,1,1,3,3,3-hexafluoropropane as a propellant and (c) a dissolved or micronized powder drug as a suspension.
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