My Grandson is one of the children who has experienced these horrible side effects. In the two months that he has been taking singulair, I have watched my daughter and her husband become increasingly terrified at the changes in our happy loving little boy. I am urging each and everyone of you to contact Merck and the FDA and file a complaint in order to stop this drug from being used in children. It is one thing as an informed adult to take a medication with potential side effects, it is a totally different thing for a parent to give a medication that they have been led to "Believe" to be safe to their child. There is strength in numbers and if we all contact the news, Merck, FDA, any one we can think of and inform them about what is happening to our children on this drug, we will be able to stop other potential victims from experiencing what our families are going thru....Please I urge you to continue to spread the word about this drug - tell everyone you know. Remember, Merck doesn't really care about our kids. They only care about the bottom line - PROFITS.