http://www.medications.com/effect/view/32373 I've been on Singulair for more than a few years now. I'm 43, with exercise and allergy induced asthma.....but mild. I also have VERY bad allergies. Talk about being allergic to EVERYTHING outside....that's me. I also suffer from migraines and depression. I Tue, 15 Jul 2008 08:18:59 -0400 http://www.medications.com/effect/view/32373?item=10154 Heres hoping you the best....report to the fda...have your doc report to...This drug is poison and they give it to babies and children http://www.medications.com/effect/view/32373?item=10154