Celebrity / Cameron Douglas Cameron Douglas Fails Drug Test, Sent to Solitary Latest in long line of prison struggles for Michael Douglas' son By Evann Gastaldo, Newser Staff Posted Jan 21, 2013 9:49 AM CST Copied In this April 27, 2009 file photo, Cameron Douglas, son of Michael Douglas, arrives at a film premiere in Los Angeles. (AP Photo/Chris Pizzello, File) The troubles continue for Michael Douglas' son Cameron: He's currently serving a 10-year prison sentence for drug dealing, yet even while on the inside he was busted for doing drugs. He failed a urinalysis earlier this month and was sent to solitary confinement, a source tells the New York Post. It was the second setback this month, after Douglas was earlier injured—possibly as a result of "prison justice" after being labeled a rat. Last year, Douglas' original sentence was doubled after he admitted to having drugs smuggled in. No word on whether his sentence will be increased once again. (More Cameron Douglas stories.) Report an error