http://www.medications.com/effect/view/28541 I also just heard about the Singulair side effects. I am a 58-year-old female with recurrent sinus infection and general allergic reactions. I had testing at my ENT's last spring--I was allergic to nothing specific. It was thought that I am generally sen Fri, 28 Mar 2008 15:40:21 -0400 http://www.medications.com/effect/view/28541?item=6051 Once you have removed yourself from Singulair, I also am interested on how long you think it took for all the drug to be out of your system. http://www.medications.com/effect/view/28541?item=6051 Fri, 28 Mar 2008 16:41:49 -0400 http://www.medications.com/effect/view/28541?item=6056 My 2 1/2 year old has been on the med for 9 months. My husband is a special education teacher, and I am in healthcare as an audiologist. We both noticed changes, but chalked it up to "being 2". However, we both have felt that there is something more to it http://www.medications.com/effect/view/28541?item=6056