Which of the following statements about antidepressants taken by children and adolescents is true?

A) they are known to be very effective
B) they are not very effective
C) their effects are clearly understood
D) their effects are not clearly understood

The effects of antidepressants taken by children and adolescents are not clearly understood. This is due in part to the fact that clinical trials involving children and adolescents are limited and there have been concerns about the potential for antidepressants to increase the risk of suicidal thoughts and behaviors in this population. Therefore, the use of antidepressants in children and adolescents should be carefully monitored by a healthcare professional.