My daughter who just turned 6 has been on Singulair for about 3 y...

My daughter who just turned 6 has been on Singulair for about 3 years now. Her behavior has not always been the best, but with her past medical history ( a preemie) and all the things we have gone through some times its just easier to give in than to fight over it!!! So last week she was suffering with her allergies and asthma and the doctor added a Claritin to be taken once daily. I didn't really think to much about it and thought well if it is going to help her the OKay. That was on Wednesday and by the week end she was literally coming "unglued". She was lying on the floor when she should have been in her seat at the dinner table. When she was in her seat she was doing "back bends" over the chair. We finally come to the conclusion that it had to be the Claritin, I looked up the active ingredient loratadine and knew I had to get her off it immediately. So now I started to investigate the Singulair as well, which I should have done long ago. Today will be the last day she takes Singulair as well. She has complained of her stomach hurting for a long time and I always blamed it on constipation, but it could be the Singulair. I can only pray that she will not have any lasting side affects.