http://www.medications.com/effect/view/29789 Very prone to thrush mouth-even after brushing and gargling, weakness in muscles, Doctors do not know the affects of taking Advair for longer than 6 months Mon, 21 Apr 2008 12:08:49 -0400 http://www.medications.com/effect/view/29789?item=7490 Hello to all posters with your terrible Advair symptoms. I have a post from over a month ago, but I'm happy to repost and add to it now so that you can read it and hopefully it will help you. I was on Advair for 3 months - both the 250mcg andd 500mcg http://www.medications.com/effect/view/29789?item=7490