Talk-radio titan [link|http://www.bayarea.com/mld/mercurynews/sports/6917777.htm|Rush Limbaugh] is being investigated for allegedly buying thousands of addictive painkillers from a black-market drug ring.

The moralizing motormouth was turned in by his former housekeeper - who says she was Limbaugh's pill supplier for four years.

Wilma Cline, 42, says Limbaugh was hooked on the potent prescription drugs OxyContin, Lorcet and hydrocodone - and went through detox twice.

"There were times when I worried," Cline told the National Enquirer, which broke the story in an edition being published on Thursday. "All these pills are enough to kill an elephant - never mind a man."

Cline could not be reached for further comment on Wednesday, but her lawyer, Ed Shohat of Miami, said his client "stands behind the story."