Robin Williams Enters Rehab 'Before Relapse'
Veteran actor enters facility to make sure he doesn't fall off the wagon...
Robin Williams has checked into a rehabilitation centre as part of his effort to stay clean.
The 62-year-old star of Mrs Doubtfire and Night At The Museum has previously suffered from cocaine addiction and alcohol problems - with a stint in rehab to kick the booze back in 2006.
But his representative has insisted that he's now taking preventative measures and hasn't actually fallen off the wagon yet.
The rep told People: "After working back-to-back projects, Robin is simply taking the opportunity to fine-tune and focus on his continued commitment, of which he remains extremely proud."
Williams is expected to stay in the centre for several weeks.