i am an adult with moderate to severe asthma. i also have an incredible number of allergies. i have been taking singulair for years. until last night at dinner with friends i hadn't even heard anything about these side effects. i have pretty much most of them. while it makes me angry, i am actually relieved that i'm not crazy. it's sort of weird. in the past few months my sleepwalking and insomnia have really gone up many levels. it's making me so tired non-functional at work. not good.
so. tonight will be my first night not taking it. i still take a few other drugs that could cause some side effects, but i hope that if nothing else, i can go back to sleeping at least a few hours at a time.
thank you all for posting all this information.