Federal health advisers are considering putting stronger warning labels on drugs to treat attention deficit hyperactivity disorder or ADHD. Health officials say reports of psychosis or mania in children have been associated with the increasingly popular medications used to treat attention deficit hyperactivity disorder.

Reviews released in advance of a meeting Wednesday cover some 90 studies on the drugs Ritalin, Adderall, and Strattera, as well as reports from doctors, parents and others.

FDA officials say patients and doctors should be made aware that a small number of adverse events, particularly hallucinations, could represent side effects. The officials say they cannot point to a definitive link to the drugs, but note a "complete absence" of similar reports in children treated with placebos.