http://www.medications.com/effect/view/32008 After reading all the horror stories on here, me and my husband soon began to realize that we were having a lot of the side effects listed here and not listed on my son's actual Singulair prescription. The side effects my son had were behavioral changes, i Thu, 17 Jul 2008 16:57:12 -0400 http://www.medications.com/effect/view/32008?item=10230 Hi - I'm glad to hear that your son is doing much better. My son started singluair in 4th grade and ended up in serious psychological trouble by 9th grade. No one ever made the connection to the singulair and he saw several different doctors about his depr http://www.medications.com/effect/view/32008?item=10230 Wed, 08 Oct 2008 14:41:19 -0400 http://www.medications.com/effect/view/32008?item=13229 My son was on Singulair for almost 3 years (He is only 5) and he was hyper, disruptive, could not focus, very impulsive. We took him to be evaluated for ADHD, after completing all of the written tests, he came back negative, but after the psychologist spe http://www.medications.com/effect/view/32008?item=13229 Wed, 08 Oct 2008 16:19:07 -0400 http://www.medications.com/effect/view/32008?item=13232 You just described my son perfectly. I cannot believe how similar they are. My son also has asthma and reactive airways. After he stopped the Singulair we did notice some improvement, but there were still some other issues he was having. He also is on http://www.medications.com/effect/view/32008?item=13232