http://www.audiblox2000.com/learning_disabilities/ritalin.htm
EXTRACT:
"...According to the DSM III-R, published in 1987, “suicide is the major complication” of withdrawal from Ritalin and similar drugs.
...In 1995, Denmark's Cooperative Institute for Medical Drug Dependence reported the following withdrawal symptoms from psychotropic drug dependence: “Emotional changes: fear, terror, panic, fear of insanity, failing self-confidence, restlessness, irritability, aggression, an urge to destroy, and, in the worst cases, an urge to kill...”
Psychotic episodes and violent behavior are also associated with chronic Ritalin abuse. Even the manufacturer warns in its information leaflet, “frank psychotic episodes can occur” with abuse..."
End of extract.
Don't these drugs sound SUCH a boon to children 
And to think that if this East Lancashire Project takes off.... millions of UK children will soon have the opportunity, just like American children do now, to take some of this 'medication' each day (with or without their consent, or possibly even yours) courtesy of a group of kind caring people in East Lancashire.
SAY NO TO THE DRUGGING OF CHILDREN!
SAY IT NOW BEFORE ITS TOO LATE.