Kiedis often battled with drug addiction, including lengthy addictions to heroin and cocaine. He tried to get clean after the Speedball overdose death of Red Hot Chili Peppers guitarist Hillel Slovak on June 25, 1988, saying he would never shoot up again. He entered rehab and ended up staying clean for five years but relapsed in 1994 when he had a wisdom tooth removed. The dentist back in Los Angeles felt novacain, a non-narcotic, would do to pull the tooth. However, the tooth ended up having to be cut out, so Kiedis was put under using liquid Valium. This sent Anthony into a relapse. He went in and out of rehab over the next few years, but has reportedly avoided another relapse since December 24, 2000. "It’s easy to be a junkie," Kiedis said in the March, 2007, issue of Blender. "It’s not easy to be one of the greatest guitar players of all time, or one of the greatest writers."[2]