Medicinal aerosol formulations
First Claim
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1. In the method of delivering an aerosol formulation containing a medicament from an aerosol container equipped with a metering valve, said formulation being suitable for delivery to the lung by inhalation from said container, the improvement comprising using in said formulation a propellant essentially free of chlorofluorocarbons and comprising 1,1,1,2-tetrafluoroethane.
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Abstract
A self-propelling aerosol formulation which may be free from CFC'"'"'s which comprises a medicament, 1,1,1,2-tetrafluoroethane, a surface active agent and at least one compound having a higher polarity than 1,1,1,2-tetrafluoroethane.
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Citations
3 Claims
- 1. In the method of delivering an aerosol formulation containing a medicament from an aerosol container equipped with a metering valve, said formulation being suitable for delivery to the lung by inhalation from said container, the improvement comprising using in said formulation a propellant essentially free of chlorofluorocarbons and comprising 1,1,1,2-tetrafluoroethane.
Specification