I know Scott says he hasn't used "drugs" in 13 years, but I think when he says "drugs," he's only including heroin and maybe coke.
Rob said this in 2010 before the S/T tour: "He can't got on tour. He needs help… He thinks he's clean just because he's not shooting heroin. But he's popping pills."
This has always been the smoking gun for me, as close to the horse's mouth as you can get. I'm not sure why there is any other debate on what is "wrong" with Scott. He may (
may) be off heroin and coke, but he still has very serious problems. It's like a game, whenever Scott says "drugs" that literally just means heroin and coke. Whatever pills he's taking is not included in his definition of drugs. Whether he rationalizes that by convincing himself they're a form of medication to keep him away from the other stuff or that since it comes from a pharmacy it's ok doesn't matter. Fact is, mixing benzos and booze is no better than what he was doing previously.