This registry is a place to share positive or negative side effects of using Singulair. If you directly experienced a side effect while using Singulair, then we encourage you to enter it here. Please note that entries here are the experiences of individual users, and in no way means that you or anyone else will experience the same side effect, since the same medication affects people in different ways. Please always contact your physician.
-- Read the entire disclaimer
March 28th
2008
7:51 PM
My son took singulair for over two years. He is now 9. Foe the last few years he has had a Jekyl & Hyde personality. Sweet as can be one minute then he will fly off the handle, calls us names, screams, breaks furniture. He also becomes emotional very easily. We have been baffled as out two other sons have never behaved in this way. I am now wondering if there is a connection with his behavior issues and his having taken Singulair for a long term.
-- By lllaw | Reply | (1) replies | Private Message me