Singulair Side Effects: I am a 32 year old that suffers from allergy induced asthma. My http://www.medications.com/effect/view/28766 I am a 32 year old that suffers from allergy induced asthma. My doctors put me on Singulair and Zyrtec and my allergies and asthma have been in control and I can live and breath without sneezing and wheezing all day long. I have indoor and outdoor allergi I, too, have been suffering from allergy-induced asthma and have Sun, 30 Mar 2008 21:10:54 -0400 http://www.medications.com/effect/view/28766?item=6254 I, too, have been suffering from allergy-induced asthma and have been on Singulair, for over 2 years. I have had no side effects at all, in fact, I cannot go through a day without Singulair due to sneezing, the swelling of my eyes as well as the wheezing I http://www.medications.com/effect/view/28766?item=6254