Hi - DH takes Fostair & has done for some time. At the hospital last time we went we were told that the inhaler only has 28 doses and DH should throw it away after 28 days because there is 'extra' propellant in it & he could get as many as a weeks more 'doses' which contain no medication.
I don't know if everyone who takes Fostair knows this; so I thought I'd nag