Charlie Sheen revealed that he's discontinued his HIV drug regimen during a pre-taped interview on "The Dr. Oz Show" on Tuesday, People reports.

"I've been off my meds for a week now," Sheen said in the interview. "Am I risking my life? Sure. So what? I was born dead. That part of it doesn't phase me at all."

Sheen also revealed that he's been working with a Mexican doctor, Dr. Sam Chachoua, who claims to be working on an HIV vaccine. Dr. Oz says that Chachoua is not licensed to practice medicine in the U.S.

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Oz followed up with Chachoua and played a portion of the audio of the conversation they had with his audience. Chachoua is so confident in Sheen's treatment that he injected himself with some of the actor's HIV-positive blood. 

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"I drew some blood from him and I injected myself with it and I said, 'Charlie, if I don't know what I'm doing, then we're both in trouble now, aren't we?'" he said. Chachoua claims that Sheen is "the first person in history without antiviral therapy" to be cured from the disease.

Six months after his diagnosis, during which he adhered to a traditional HIV drug cocktail, Sheen was found to have undetectable levels of the virus in his blood. Since pursuing Chachoua's treatment, however, his numbers have gone up -- become detectable, in other words. As such, the actor says he's not recommending his treatment in Mexico to anyone. "I didn't see it as a complete dismissal of the conventional course we've been on. I'm not recommending that anyone - I'm presenting myself as a type of guinea pig."

Oz and Sheen's U.S. physician, Dr. Robert Huizenga, who was sitting in the audience, pleaded with Sheen to resume his meds. The actor promised he'd start on the plane ride home to Los Angeles, but it wasn't clear if he was serious.

Sheen was diagnosed with HIV in 2011 and publicly announced his condition in November on "Today."