My problems started with bronchitis in December and snowballed. I have very minor asthma since childhood; usually one or two events a year. Don't know what happened but it was out of control. Started on Singulair as a means to bet my asthma controlled so I can go back to easier maintenance. I was only on Singulair 10 days. I had it ALL: depression, anxiety, numbness in legs and feet, flu-like symptoms, earache, leg jerks at night, can't sleep, dreams (when I did dose) that were so weird they were unreal, and the very small hint of stomach ache so I QUIT IT immediately. Went back to my doctor who was not opposed to it all; she send side effects can be nasty for some people and admitted SHE can't even take it. Hello???
I was never a dpressed person; at first I didn't know what in the world was happening to my personality. I think this drug can work for some but it appears to be a few - seems the side effects hit just about everybody in some form. I would be every careful taking this drug; the advantage has to outweigh the side effects, for me the side effects were far worse than the asthma flare-up.
I don't want to dish on the drug since it seems to help some people but I think they downplay the side effects entirely too much when the prescribe it; you don't see them all until you fill the prescription and start reading. Yikes.