From what I have read and heard on the news, etc... this means that the current meds are not intended most especially for children. Now, the FDA is putting a warning on the label extending the warning to ages 18-24. Now, the anti-depressants tend to work better for adults, not children, hence the warning:
The Food and Drug Administration proposed labeling changes that would expand a warning now on all antidepressants. The current language applies only to children and adolescents. The expanded warning would apply to adults 18-24 during the first month or two of treatment with the drugs, the FDA said.
The proposed labeling changes also would note that studies have not shown this increased risk in adults older than 24, and that adults 65 and older taking antidepressants have a decreased risk of suicidal thoughts and behavior, it said