My son was on Singulair from 4-8 years old. During that time he w...

My son was on Singulair from 4-8 years old. During that time he was very emotional, cried easily, had abrupt mood changes, trouble sleeping and had behavioral issues at school. He also began banging his head on the floor when frustrated and caused severe redness and bruising. He also had a psychotic episode at school noted by teachers and the school psychologist. I wish at the time I associated it with the drug and took him off sooner. He has been off since August of 2007 and is a great student at school with no behavior problems at all!!! He is a happier child and I think the FDA should make Merck label this drug much better. And for "unconcerned" who posted here I don't think there is anything wrong with continuing the drug- each person reacts differently to drugs if it works for your child- that is great!