text: dose inhaler and asthma, what are the consequences? my gp says that only children with high doses of preventer inhaler, this is 800mg a day, for a very long time presents health complications in the future. i do wonder then if by giving low dose of inhaler to my child, this is the recommended dose of 200mg, a day for a long time she will remain free from complications. thanks for any answer! i have been asthmatic since i was 1 year old (39 yrs), i think i can honestly say been and done, tested about every inhaler over the years, from high to low doses! keep your child on the inhaler 200mg is ok. i have no major side effects after all this time.   do keep him on his preventer, and his reliever medications. with the inhalers i always brush my teeth well and gargle as the one downside to inhalers is thrush of the mouth/throat. oral hygene is important.  asthma kills don't take any chances with your child!