Here is on article discussing the possible cons of the introduction of the HFA inhalers and the outlawing of the older CFC type (except for Maxair).
Some patients complain they do not work as well and more complain about the increased costs and more than a few physicians have spent time educating patients regarding their use and offering reassurance.
If you wonder, as I do, about how much effect the CFC pulmonary inhalers have on ozone depletion and how much good this prohibition will generate, this reference might offer some information and opinion in that regard.
When I wrote about this before I said:
.. I think this is the first time that the FDA [has banned] a medication or group of medications not because they are thought or proven to be harmful to those who use them but because they are thought to possibly harm folks who do not use it. (OK, the purported skin carcinogenic effect of increased sun rays from the purported decrease in ozone layer thickness would affect everyone- even asthmatics.) Since the task of determining harm to medication users has proven much harder that the FDA or anyone ever thought, it is admirable that the FDA will take on an even more difficult task.
I don't have a tracking on the course this regulation took through the regulatory mechanisms and who supported it, but I cannot help but wonder if we are dealing with still another instance of the "Baptists and the Bootleggers". Since there are no generic versions of the HFA inhalers, guess who the bootleggers would be and would the Baptist role be played be the more radical environmentalists?