My 7 year old son was just diagnosed with OCD and has been prescribed Prozac. I am not happy about this at all. I have had him on Prozac for one week now and thought I would check the internet on the effects of Prozac and Singulair on kids and was shocked to find out all of his current problems may be a result of the Singulair. I am taking him off of it effective today! This is after about 3+ years of being on Singulair. I am very disturbed at what I am reading about Singulair and the fact that it may be responsible for all of the terrible problems that he has been experiencing. He is beautiful, smart little boy that has been experiencing terrible thoughts and feelings lately to the point where he has told me that he wishes he was dead. I feel so bad that I did not check sooner. He is off Singulair today. I am notifying his pediatrician and hope this will result in a much happier little boy. I will write with results in a couple of months.