allergic rhinitis
"I am 29. Singulair alleviated my season allergies in the beginning for a period of 2 weeks maybe, after that I had the opposite reaction, was having a hard time breathing and my nose and throat were dry all the time. I stayed on it thinking it was something else, then I decided to quit it because after a regular run it triggered a tachycardia. This was something I never had before, I am a healthy guy, used to push myself hard during workouts. Once I stopped it there were no issues with dry nose or anything else. Guess I'm one of the minority that have adverse reactions to it."