Eminem is featured in the new documentary 'How to Make Money Selling Drugs,' where he details his battle with prescription pills.

Em's last album, the blockbuster 'Recovery,' painted the same picture, but here, Em talks about his addiction struggles, straight up, revealing that he was in such bad shape that he nearly died.

Painkillers were his poison. In the doc, he said (quotes via MTV and in the clip above), "When I took my first Vicodin, it was like this feeling of 'Ahh.' Like everything was not only mellow, but [I] didn't feel any pain. I don't know at what point exactly it started to be a problem. I just remember liking it more and more."

That's a recipe for disaster and how things began to spiral. "People tried to tell me that I had a problem," the rapper recalled, trying to rationalize that he wasn't hitting the hard stuff.

He continued, "I would say 'Get that f---ing person outta here. I can't believe they said that s--- to me. I'm not out there shooting heroin. I'm not f---ing out there putting coke up my nose. I'm not smoking crack."

Things got even more brutal when Em began to dabble in drug cocktails, mixing different pills. That behavior ended up with him in the hospital and in critical condition. "Had I got to the hospital about two hours later, I would have died," he said. "My organs were shutting down. My liver, kidneys, everything. They were gonna have to put me on dialysis. They didn't think I was gonna make it. My bottom was gonna be death."

That didn't scare him straight, though. Within a month of his release, he relapsed. He eventually got himself out of the hole by focusing on the things that mattered most – his daughters.

"I'm looking at my kids and [realizing] 'I need to be here for this,'" Em said in the film. So he commenced with a detox program. "Coming off everything, I was literally was up 24 hours a day for three weeks straight," he said.

It was an ordeal to get clean, as Em said, "And I mean, not sleeping, not even nodding off for a f---ing minute. I had to regain motor skills, I had to regain talking skills. It's been a learning process, I'm growing. I couldn't believe that anybody could be naturally happy without being on something. So I would say to anybody 'It does get better.'"

When Em's revealing interview took place is unknown.

The film, which appears to advocate decriminalization, opens in L.A. today (June 28).