@mshamdann You have a young son and he has taken Montelukast 5 twice since his birth. You are concerned and wondering is the drug will cause undesirable heath effects in the future.

You will notice that I added this discussion to the Lung Health group. I did this because Montelukast is prescribed for asthma. Am I correct in assuming your son has asthma?

Members like @jmb73 @merpreb @fighter @spudmato that have discussed related topics and be able to offer information and/or support.

Obviously parents do not want their children taking unnecessary medication or medication that could have long-term unintended consequences. You asked specifically about the nervous system. May I ask if you have heard/read information that this medication can effect the nervous system?