My daughter has taken singular since she was 3, she's now 19. I'm really worried about long term effects....she's in college now and after a year of sinus problems we've taken her off gluten, dairy, eggs and soy and she is doing much better. Just recently we had trouble getting a renewed rx down to her in school and she's been 'out' of singular for a week. Every now and then a little chest tightness but now I'm really feeling like we should give it a go and try taking her off. Bottom line, after last year, I really want her to have a healthy school year at college. Also, she is amenorrheic, has anyone ever heard of any complications with singular use and menstrual cycles?
Be sure to let your doctor know that you have stopped taking Singulair this week and watch for signs of uncontrolled asthma - increased use of inhaler, coughing, sighing... There are a lot of subtle signs that people miss.
You do need to be off the med, but be careful.
Take care and I am glad you are feeling better.