Acyl vitol?

I am hoping someone knows what this is, or knows anything about this. I recently came across this interview with Eric Roberts where he mentions two drugs that saved him. One was called Acyl vitol, or sounds like that name. He refers to it as a "youth serum." I've tried looking it up, but I am unable to find this to read anymore about it. In the following video, Eric talks about this drug and how he obtained the name of it at the 7:30-ish mark....