Rolling Stones’ guitarist and noted drug fiend Keith Richards offers advice to Amy Winehouse and Pete Doherty.

Speaking to Another Man magazine for their ‘Altered States’ issue, Richards spoke about the two troubled stars.

He said, “Amy Winehouse and Pete take drugs for the same reasons we did. All I'd say is take your drugs in your spare time, if that's what you want to do, but don't mix it up.”

Richards actually spoke to Doherty about his drug use.

“I've had a word with Pete about this but it don't make any difference,” he said. “If you mix it up you're just gonna fall like a million others. I've seen too many friends gone that way.”

If either star doesn't listen, maybe they can pick up his forthcoming autobiography Life (due out on October 26) for an object lesson in what not to do.