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Medicinal aerosol formulations

  • US 5,439,670 A
  • Filed: 07/02/1993
  • Issued: 08/08/1995
  • Est. Priority Date: 11/28/1989
  • Status: Expired due to Term
First Claim
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1. An aerosol formulation comprising:

  • a medicament, a propellant comprising 1,1,1,2-tetrafluoroethane and less than 5% by weight of CHClF2, CH2 F2, CF3 CH3, or a mixture thereof, a surface active agent, and at least one other compound having a higher polarity than 1,1,1,2-tetrafluoroethane according to the Kauri-butanol value.

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