Had a similar situation.My Dr. gave me a sample of the new type & after 2 puffs, I had shortness of breath for the entire day. I considered the emergency room but suffered through it.
I’ve been hoarding Primatene Mist for a year. Bought everything on the shelf at Walmart yesterday. I’ve got 65 of them stockpiled. Should last 2 to 3 years.
just go get a nubilizer. they work better than MDI’s anyway. That is what I did after trying one of the new ones.