Fearless child symptoms and conditions

I have been taking Singulair since it came on the market almost 10 years ago. I am now 26 years old and working on a Masters in Psychology. My theory is about this drug that people that are experiencing depression, and suicidal thoughts are prone to having this without the drug. I cannot skip a day without this medication or else I start having severe flair ups. I am writing because it always seems when there is a good drug on the market it gets pulled because of the side effects. I hope Merck does extensive testing and surveying to make sure of these allegations before the drug is discontinued. Also I took Singulair the entire time I was pregnant and my child has no kind of birth defects etc.