Asthma
"My daughter has taken this for about 8 years.  She&#039;s always seemed to have extreme emotional reactions to the smallest things.  I asked her doctor multiple times if it might be the montelukast she takes causing this.  Dr. said &quot;no, reported side effects just happen when the child starts taking it.  Must just be her personality&quot;.  I know what is normal and her reactions were extreme.  Everything came to a head this past winter when she started having obsessions about eternity.  We took her off the montelukast.  About 2 weeks later she had a psychotic break.  She was crying all day saying she didn&#039;t want to exist.  It has taken 2 months to get her back to semi-normal.  This drug is not good for children!!!  Her experience is not unusual!"