The drugs, which include popular selective serotonin reuptake inhibitors (SSRIs), are sometimes used to treat repetitive behaviors in people with obsessive-compulsive disorder (OCD).
"The main issue to emphasize is that SSRIs are perhaps not as effective at treating repetitive behaviors as previously thought. Further research will help confirm these findings in the long run," said Melisa Carrasco, the study's lead author, in an email.
For their analysis, Carrasco, a researcher at the University of Michigan in Ann Arbor, and her colleagues examined PubMed and ClinicalTrials.gov for randomized, double-blind and placebo-controlled trials -- considered the gold standard in medical research -- supporting the use of SSRIs and similar antidepressants in children with autism.
Image: Prescription pad, via Shutterstock.