Predictions are that the estimated £7 million spend on ADHD by the NHS in 2002 will rise to between £49 and £101 million a year in 2012.
The overall drug expenditure by doctors for ADHD may increase between two- and nine-fold.
The estimates come from Professor Michael Schlander, from the University of Heidelberg.
He calculated the range of possible costs by considering likelihood of diagnosis and treatment, the level of treatment and drug costs.
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