My son ,23 months old, started on Singulair this past spring 06, ...

My son ,23 months old, started on Singulair this past spring 06, after pulmicort wasnt doing the trick at taking away his sick asthma. Singulair has worked thus far, but I have noticed if I forget to give it to him, the next day he is irritable and miserable. It doesnt seem coincidental anymore because over the summer I tried cutting back a little on the meds because typically illnesses occur during the winter months. And he seemed to be more irritable every time i cut back. I will be going to his specialist soon and discuss this with him. Hopefully we have a better winter this year and he can be off all his meds soon. Also, he will not go to sleep if I give it to him at night, I use it after his afternoon naptime.