not sure if they still are, but inhalers were one of the few things to escape the CFC elimination
Most of them changed, but I think CFC-based ones are still manufactured in small quantities for when needed, and get an unusual colour plastic part to denote that.
When beclometasone switched to
HFA-134a propellant I found that I couldn't take two puffs on consecutive breaths without coughing (unless using a spacer). Suspect that was a change in the ethanol content rather than an effect of the propellant itself.
*checks* Yeah, the Salbutamol's using the same stuff.
The one that really pissed me off was Beconase (nasal spray) going from a CFC based aerosol to an aequeous spray. I never used to get nosebleeds as a side-effect with the aerosol one. (I'm using fluticasone these days. Still get nosebleeds after prolonged use, but it's much more effective. As such, it's best if the tree and grass pollen peaks overlap as much as possible.)