Address ProAir and Proventil patents. This drug was a generic before FDA changed the law. Price changed from $5 to $65 for 1 inhaler.
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It was supposedly over a new mechanism for inhalation, one that doesn’t contain CFC’s. New ones are HFA (the patented item/propellant). Actually I think that patent is supposed to expire soon (I use an inhaler and remember when it changed).
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