Inhalation is the preferred route of delivery for most
asthma drugs. Chlorofluorocarbons (CFCs), which
have ozone-depleting properties, are being phased out
as propellants in metered-dose inhalers. Non-chlorinated
hydrofluoroalkane (HFA) propellants, which do
not deplete the ozone layer, are being used instead....
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Information about the article:
Title: Drugs for Asthma
Publication: Treatment Guidelines from The Medical Letter
Issue #: 114
Article Code: 114a
Date: February 1, 2012
Volume: 54
Pages: 11-18