Hives that are caused by an allergic reaction can sometimes be an early sign that your baby is about to have a severe allergic reaction, called anaphylaxis. Symptoms can come on very quickly and can be fatal.
1 Antidepressants can Cause Suicidal Thoughts and/or Behavior in Children. 2  What to do if Your Child is Anxious or Depressed. 3  Antidepressants Approved for Children. 4  Getting Your Child Started on Antidepressants. 5  Signs of Suicidal Thoughts in Children. 6  The Bottom Line on Kids and Antidepressants.
With several psychiatric medications (such as fluoxetine, sertraline, escitalopram, citalopram, paroxetine, venlafaxine), research shows very little, if any, adverse effects in children. And, if there are adverse effects, they may be short-lived. Some reported adverse effects include sedation, fussiness, and colic.