http://www.medications.com/effect/view/28562 I am 16 and soon will be turning 17 years old. I have been on 10 mg. Singulair for about six weeks. I am already having side effects. I am on Prozac already, this med was to help calm me down, especially about my dad who will be having his fourth brain sur Fri, 28 Mar 2008 11:16:03 -0400 http://www.medications.com/effect/view/28562?item=6001 Why were you put on an asthma medication to "calm down"? That makes no sense whatsoever! http://www.medications.com/effect/view/28562?item=6001 Fri, 28 Mar 2008 11:27:40 -0400 http://www.medications.com/effect/view/28562?item=6005 My daughter is 20 now, and she has taken Singulair for nearly 12 years without any side affects. 10 mg a day, and we THOUGHT it was a miracle drug. Until October 2006 when she had a psychotic episode and was hospitalized for two weeks. She was hallucinati http://www.medications.com/effect/view/28562?item=6005