My 12 year old was on Singulair from age 4 to 10. We too thought ...

Thank you for your posting. It is exactly what we have been going thru with our 5 1/2 yr old son. He was on Sing for 5 weeks when he began having this terrible facial tic and other behavioral issues (resistant, ocd, defiant) He has been off of the drug for a week now and we are seeing the facial tics diminish, but his behavior is still tough at times and then normal at times. He is struggling to keep it together alot and I think it is exhausting him (not to mention us!) You mentioned that there have been lingering symptoms 2 yrs later. Is it the tics, behavior? How long was it that you saw some significant changes back? We are desperate for answers! Have you gone down any homeopathic route to get your son additional help? Thanks for any info you can provide. My pediatrician never heard of any Sing side effects like this, and our allergist said "it was the first case that has crossed his desk" making me think he too has heard of this interaction or response to taking Singulair. This is a total nightmare! God bless us all.