Hi everyone! I came to this part of the website because my son ha...

Hi everyone! I came to this part of the website because my son has been having the same issues with Singulair. In some of the other posts, I noted that some people on the Singulair post said Zyrtec did the same thing to their kid. I found out today that Singulair contains aspartame and I am wondering if Zyrtec does too. Aspartame could be the link in the behavioral issues. I did a google search and here is what I found: http://www.sweetpoison.com/aspartame-side-effects.html Also, I called Merck, the maker of Singulair today, and they are sending me for free a 17 page FDA report on the drug. The representative told me that it was reported in the study that there was behavioral side effects and named just about everything my son has been displaying. I reported my child's effects to them and I also went online to FDA.gov and reported the side effects to the FDA. The more people that report the problems, the higher likely hood the FDA will review the drug and possibly pull it. I believe there was a medication from Merck that was pulled last year that was causing some type of heart problems. Again, unless we report the effects, no one will do anything. I suggest you call the manufacturer of Zyrtec and find out what the study showed.