The propellant or means of delivery can be just as critical as the medication in getting it into the persons airway efficiently and quickly. An example is a sinus allergy spray called Nasocort I think was the name. In a propellant spray mist delivery it worked almost instantly. The EPA and Lords of Stupidity however decided that it needed to be in the form of a typical squeeze bottle delivery {liquid} fer da environment of course. What once worked well became useless. Having the majority of it go down my throat rather than in a mist form absorbed by the membranes in my nasal passages made it a futile act and waste of money. Sinus allergy attacks can be very similar in nature to Asthma attacks. Getting instant relief should be the top priority.
The fellow claims his medication changed. It did not. As I said, I’m not happy about the new delivery method myself — but the medication is not different.