Hi, My dad is 77 years had bypass surgery on 22.9.16. he s active and does walking and free hand exercises daily. but got dry cough without cold since 2-3 months. shown him to a renowned doctor, after chest x-ray and aftet test, dr. prescribed spiromont fa daily one tablet at9 pm fr 20 days and digihaler sf250 inhaler wit spacer daily once. my dad is very upset to take this medicine because he is already having tablet s post bypass operation. informed dr. how many days and he have this medication? is their any side affect.