Isn't the half life of albuterol really short? I don't know for sure, my intuition just tells me that, I've used it for years. I can't speak to combining with an maoi or rima though, sorry. It can raise my heartbeat directly after an inhalation, so your concern is a valid consideration. You're a good carrier of the other kind of medicine.
Perhaps if you use mullein for changa, your buddy can use it for its anti asthma qualities for a day or two (unspiced) whatever the roa for it is - tea, methinks - if it's effective enough for them. I'd look into the duration of blood stream levels or however they put it, that may point you in the right track.
Sine experientia nihil sufficienter sciri potest -Roger Bacon
*γνῶθι σεαυτόν*