United Kingdom, Oct. 7 -- George Clooney has opened up about his past drug use but insisted it was "never a big issue" for him.

The Jay Kelly actor recalled experimenting with cocaine, which is sometimes known as blow, as an up-and-coming star but wasn't impressed with the substance, in part because it had been mixed with laxatives.

He told the new issue of Esquire magazine: "Eighty-two, I tried - I did blow and stuff. I used to make jokes about how I did too many drugs, but the truth is, it was never a big issue for me at all.

"And look, there was an episode of Taxi where they're all doing blow. At the time, it was like, No, this is not like heroin. It's not addictive. But then it was like, Oh, well, it's actually pretty f****** bad....