Hi Doctor, I Was Prescribed Gupisone 5 Mg, 4 Pills

Hi Doctor, I was prescribed gupisone 5 mg, 4 pills a day, 3 times per day for 4 days because I am asthmatic and I have a scan to do in 4 days, as I am looking up info about this meds I can see many side.effect, and it seems like a big dosage no?? I am in a part of the world where health care is questionable so I guess my question is, is it in fact the right.meds and quantity that was prescribe? And just to show you the pharmacist didn't even give me the right amount i only have for 11/2 day...seriously!...lol