What is the difference between the old and new Primatene Mist?
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4 min read
The original Primatene Mist, containing ozone-depleting CFC propellants, was removed from the market in 2011 as part of an international phase-out agreement. A reformulated version, featuring an environmentally friendly HFA propellant and a new inhaler design, was approved by the FDA and returned to shelves in 2018. This article details what is the difference between the old and new Primatene Mist, clarifying the changes for users.
