Singulair (montelukast) has been a game-changer for people who battle asthma or relentless allergies. This article explores how Singulair truly works, why doctors prescribe it, plus the real side effects that patients have faced. You'll get practical tips for safer use, data from clinical trials, and an honest look at controversies around mental health. If you or a loved one needs medication help for breathing issues or allergic reactions, you'll find human stories and expertise here.