Robbie Williams is hooked on anti-depressants Seroxat and Xanax, and the painkiller Vicodin, it has been reported.

'The singer - who checked himself into a rehab clinic yesterday (13.02.07), thought to be Arizona's Meadows centre - also gets through 36 super-strength double espresso coffees, 20 cans of Red Bull and 60 cigarettes every day, according to reports.'

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