Scientists put more than 60 baby monkeys on Prozac. Some changes were still there long after the drug was stopped. We can't ethically randomize children to SSRIs. But researchers at UC Davis and the NIH did it with young monkeys, at doses matched to what kids get. The monkeys started at about 1 year old (roughly age 4 to 6 for a human), took Prozac for about 2 years, and were followed for up to 18 months after. What they found: 1. Sleep. More night waking, more fragmented sleep, less deep sleep. It persisted after stopping. 2. Social behavior. One study saw less dominance and more submissive behavior, during and after. 3. Attention. More errors on sustained-attention tasks, and it persisted. It makes me wonder how many kids on SSRIs later get labeled with ADHD. 4. Emotion. About 40 to 45% fewer emotional reactions. In my experience feelings usually come rushing back after people come off. 5. Brain. PET scans showed lasting changes in the serotonin system into young adulthood. Monkeys aren't kids. But they're the closest thing we have. Pregnant, or considering an SSRI for a child under 18? Treat it as a very serious decision. Don't let anyone rush you. Try non-drug options first. And if your child is already on one, never stop it suddenly. Taper slowly with their doctor. Comment TAPER and I'll send you my free safe tapering guide.