I'm a mother of a lovely 6 year old child who has been on Singulair for four years. For four years, I've dreaded taking my child anywhere public for fear of her outbursts and for four years, I've thought that Kate perhaps has ADHD. Funny, but she had near psychotic reactions to the inhaled Albuterol the docs put her on due to some very scary episodes she had before the age of 2 with RSV. I never suspected that the Singulair they put her on for Ashthma might be the cause of the behaviors that she and our family have suffered with for years. I've called her doctor and told the doctor that I'm taking her off right now, IMMEDIATELY. I've even consulted with the doctor about her behavior but got the feeling that she just thought I was being oversensitive. For four years, I have had a hyperactive, moody, sleepless and generally unpleasant child and I am worn out and heartbroken. I pray that taking her off this medication will work.