I have been taking montekulast (singulair) for over two weeks and have had a tummy ache and felt nauseous for over a week.The doctor has agreed for me to stop taking them, but how long will it take to get the effects out of my system. I have stopped taking them for 2 days but still feel dodgy!

Singulair remains in the body for 24-72 hours. It may take a little while for your stomach to settle. In the meantime, you may want to ask your doctor or pharmacist what you can take to help your nausea.