Montelukast
"Was prescribed for asthma to get me off my inhaler so often. It worked but, I gained 6lbs in 5 days & started having random nose bleeds & waking up with lots of joint pain. Then I stopped sleeping more than 4 hrs a night & I was taking it it before bed. The days were filled with anxiety, brainfog & confusion. Too bad because it really did help control the asthma. I stopped taking it. I'd rather cough than be in constant pain & crazy."