Side Effects of Singulair
Singulair Side Effects
Singulair is a different kind of asthma drug. It works by blocking certain substances (leukotrienes) in the body that can cause allergy and asthma symptoms such as shortness of breath, sneezing, and stuffy/runny/itchy nose. But side effects of Singulair can be an issue. Learn about the side effects of Singulair here.