My son is 6 years old and he has been on and off Singulair for ab...

My son is 6 years old and he has been on and off Singulair for about 2 years. He was off since last Fall 2007, but was put back on in April 2008 for allergies. He began telling me that he was having "dreams" during the day. He would then tell me these totally bizarre thoughts, "dreams" that he was having. They were very strange and perverted and violent. I asked him why he was saying this stuff and he said, "I just can't help it, they pop into my mind." I thought that he was going through a phase because he was bored. He is in 1/2 day kindergarten and I attributed this to too much television and boredom. I was thinking that someone was feeding him this crazy information (kids on bus, class, etc.) and he was repeating it to me. He was too showing OCD symptoms, afraid if he touched his feet- "is that dirty??" afraid if he touched someone's hand, "is that dirty if I touched Tim's hand?" He would also cry and whine often over the simplest things. I thought this was a phase. Our prescription for Singulair ran out and I did not fill. I started noticing a change over a week's time period. My little boy who was coming to me several times a day with bizarre "dreams" had not mentioned them at all. His compulsive behavior has stopped and so has the whining. I feel lucky that I did not fill the prescription because I would not have even thought it was the singular, since there are no side effects like the one's I mentioned above on the label. I am sick about this!!