"After I ride sometimes on the track, I feel I'm entitled to take two Vicodin at the end of the day because I am in pain," he said during an episode of his podcast.
"For the last eight weeks ... I'm on them all day," he went on. "I'm allowed to be on them at some dosage because I have a prescription, and then I'm also augmenting that. And then all the prescriptions run out, and I'm now just taking 30 mil Oxys that I've bought whenever I decide I can do [it]."