"Mostly it was drinking, you know, and opiates," he revealed. "I think I was pretty good at hiding it but, you know, eventually people were aware."
Perry added, "I was a sick guy."
But once the 43-year-old got a handle on his own sobriety, he joined forces with addiction specialist Earl Hightower to open a sober living home for men called Perry House. Perry and Hightower were awarded earlier this month at the White House with the Champion of Recovery award.
"We're award-winning alcoholics," the actor joked.
And while Perry is working on helping others achieve sobriety, he's also been focused on the recent rumors surrounding a possible Friends reunion.
"I don't think so," he said. "It would be terrible to do something and have it not be good. If we did a movie and it sucked, then it would, you know, blemish it."
"I would assume I'll be there," he coyly admitted.