http://www.medications.com/effect/view/34276 I am happy I found this website to express my concerns about singulair. My husband and I are still shellshocked about how singulair turned our lives upside down. My son was on singulair for 5 years. During that time he had extreme anxiety, nightmares, st Wed, 10 Sep 2008 13:12:05 -0400 http://www.medications.com/effect/view/34276?item=12224 I just found your posting, and I am trying to find some help in regards to my 10 year old boy. He had been on Singulair for about 2 1/2 to 3 years. He said that he was always tired or sad, but most of all he said that he felt like he was in a fog all t http://www.medications.com/effect/view/34276?item=12224