Hi, this is my first post: I have received a letter from my surgery saying that they will be substituting my "Seretide" inhaler, for one called "Sirdupla". The surgery states this not for clinical reasons, but simply on the basis of cost. therefore I'm asking.
A: Is it as effective as "Seretide"
B: If I am not happy about this substitution, can I challenge the decision.
I have had experience with substitute medication before, and I think it is time to draw a line.