Kristen Johnston talks addiction with Dr. Oz: 'My guts blew open'

On Tuesday (March 13), former "3rd Rock from the Sun" actress Kristen Johnston sits down with Dr. Oz to talk about her addiction to painkillers and its nearly fatal effects on her body.

"Well, my guts blew open, which is fun," she tells Dr. Oz when he asks what finally got her to stop abusing prescription drugs. "I got an an ulcer because I guess what I didn't realize is that painkillers come encased in aspirin and, you know 30 or 40 of those a day..."

In her new book, "Guts," Johnston chronicles her battle with addiction and her close brush with death.

What led to her drug addiction?

"I think it was not liking myself," she tells Dr. Oz. "I didn't like myself and I do now."

Johnston currently co-stars with Donald Faison and Wayne Knight on TV Land's "The Exes."

Watch Johnston's full interview on Tuesday's "Dr. Oz Show" (check local listings), but first watch an exclusive clip below: