I would like to urge everyone to report adverse drug reactions to...

HI, Its been 2months since my 3yr old son has been on Singulair, and I have noticed a significant change in his behavior.He is extremely aggressive, hitting,biting, things that he was never doing, he was always sooo loving, I decided to look up side effects out of curiosity and found this site... I cant believe everthing I have read... I am stopping the medication today!!!! Its so weird how his behavior change was so significant that I immediately thought "maybe its the medication"..... and it probably is. I will definetely discuss this with his doctor... but even if he pressures me to continue. I will Not. Even the thought that it could be a possibility of his aggressive behavior, I will not have it. I am new at this blog thing, SO I hope I am sending this posting correctly....