http://www.medications.com/effect/view/31859 My son began taking singulair when he was 6. About that time we were hading into the school years. He was labeled as a "special" child from that time on. Impulsive, aggressive, angry, anti-social, etc. He had a hard time focusing at school and every day was Sat, 28 Jun 2008 10:55:45 -0400 http://www.medications.com/effect/view/31859?item=9605 Testosterone changes the way that boys/men need certain amino acids. After puberty, there is a greater need for these amino acids. I will come back later and explain. http://www.medications.com/effect/view/31859?item=9605 Sat, 28 Jun 2008 12:43:47 -0400 http://www.medications.com/effect/view/31859?item=9609 Wow,my worst niightmare,i have seen the posotive changes in my son since coming off singulair,but i do worry about the effects all the other meds that were added and now we know not needed may have done,obviously the extra drugs that did not work ,anyway w http://www.medications.com/effect/view/31859?item=9609