NAC might help reduce OCD symptoms more than placebo after 10 weeks, but the difference wasn't quite big enough to be considered statistically significant.

When kids and teens with OCD take NAC along with their regular medication, their OCD symptoms get much better overall compared to those who just take the regular 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.

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.

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.