Fluoxetine (Prozac) is often prescribed for people with depression, anxiety and obsessive-compulsive disorder but has also been used to treat repetitive behaviour in people with autism. Small-scale studies have shown promising results but trials of a new, low-dose form of the drug, aimed specifically at treating autism in children and adolescents, have proved a disappointment. The study of 158 children, aged between 5 and 17, carried out by researchers in 19 sites across the U.S. compared the fluoxetine to a sugar-pill placebo. Both reduced repetitive behaviours but there was no difference between the two.
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