asthma
"I came to this site to see if anyone else had the same experience with this drug. I had a terrible case of bacterial pneumonia six months ago and have developed asthma as a result of this infection. I live on a farm, am very active, and have suffered from seasonal allergies my entire life, which I managed with antihistamines. My doctor prescribed Singulair to lessen my inhaler use, and at first this drug was absolutely wonderful. Our prescription drug plan would only allow three refills from our local pharmacy, and now I receive a generic refill through the mail. After a few days of taking this generic rx, it was like taking an entirely different drug - the side effects are simply awful! Sadly, I won't be taking this drug anymore."