My nine year old daughter has been on Singulair for just over a m...

There are 10 cases of nose bleed listed on the adverse drug reaction report from the United Kingdom. I only posted the main categories in order to be brief. When I looked, it was listed.

There are many medications for seasonal allergies. No reason to stay with one that causes a nose bleed for your daughter. Singulair is a gene based drug. We have no idea how many genetic variations actually exist. Or how each individual will react to Singulair.