NAC doesn't cause more side effects than placebo when taken with OCD medication for kids and teens, with tiredness being the most common side effect in both groups.

Adding NAC to OCD medication doesn't seem to help kids and teens with OCD move around or do physical activities better than just taking the medication alone.

Kids and teens with OCD who take NAC along with their medication can move around better than they could before starting treatment, but this improvement isn't better than what kids get from just taking the medication alone.

Kids and teens with OCD who take NAC along with their medication feel better emotionally compared to those who just take the medication alone.

Kids and teens with OCD who take NAC along with their medication have better social interactions and relationships compared to those who just take the medication alone.

NAC is safe to take along with OCD medication for kids and teens, with no serious side effects and similar side effects to placebo.