M Campbell, A M Small, C S Hollander, J Korein, I L Cohen, M Kalmijn, S Ferris
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A controlled crossover study of triiodothyronine in autistic children.
A placebo-controlled crossover study of behavioral effects of triiodothyronine (T3) was conducted in 30 young clinically euthyroid autistic children. Multiple independent raters and multiple rating scales were used. Except for a few symptoms that were reduced on T3, the drug did not differ from placebo. Time itself accounted for most of the improvement in the whole sample. As a group, the lower IQ children responded to T3. The individual children who were responders could not be defined by any parameter.