http://www.medications.com/effect/view/21701 I just posted some side efffects I have been experiencing from Singulair. Another one I want to add, is when I woke up yesterday with the severe leg cramps, I felt weird in my head; it scared me; it also felt like I was being pushed backwards. Very scary Sat, 28 Jul 2007 08:03:05 -0400 http://www.medications.com/effect/view/21701?item=931 I have had several bouts with bronchitis in the past two years, along with having asthma. My doctor recently put me on Singular, and said there were no side effects! I have worken up the past two nights with such severe leg cramping that it has ruined m http://www.medications.com/effect/view/21701?item=931