Sources close to Greg Giraldo tell TMZ the comedian was hospitalized after an overdose yesterday ... but it was not a suicide attempt, as has been speculated.
We're told Giraldo -- best known for his appearances on Comedy Central roasts -- was taken to a hospital in New Brunswick, NJ after he was found by a friend.
According to our sources, Giraldo overdosed on prescription pills ... but it was not a suicide attempt.
We're told he is currently in critical but stable condition.
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