My 6 year old son was on Singulair for 2 months for viral induced...

My 6 year old son was on Singulair for 2 months for viral induced asthma. After about 2 weeks we started noticing that angry tears were pouring out of him about minor problems - his brother didn't want to want to watch the same TV show as him, etc. By 2 weeks later he had started having daily major meltdowns, yelling that he didn't love us and never had, refusing all physical affection and calling himself a loser. This was behavior we had never seen from him before. After a month of this, we were really beginning to think that he either had a mental illness or was having a nervous breakdown. There was a wild look in his eye, and it was obvious that his behavior was confusing him, too, but he was powerless to stop it. My husband had the insight to check the Singulair side-effects the evening of a particularly bad day and we pulled him off immediately. The next day I talked to an acquaintance whose normally laid back and happy 7 year old had started saying he wished he were dead after 3 months on Singulair! The "edge" my son had to him while on Singulair that made us think of mental illness went away almost immediately after taking him off Singulair. He was still quite irritable and quick to tears for two more weeks, but right now he's been off 3 weeks and I think we have our son back.