Yes, he talked about it once on TV. But it was talking about people taking ILLEGAL drugs, not people abusing legal drugs.
Remember, Rush was taking legal prescription drugs, not smoking crack.
Addiction to any type of drugs legal or illegal is a horrible thing. Yes Rush was addicted to a legal drug, but it is a drug that is called the hillbilly heroin on the streets. I feel that people addicted to illegal drugs should be allowed the chance of rehab instead of being thrown into jail.