Plasma Filtration for Steroid Side Effects?

I heard an interview of a Bulgarian doctor, who used to work with the olympic athletes saying that famous actors like Silvester Stalone who use steroids are using this method to “clean themselves from the steroid side effects”. To me it sounds like a total bulshit, but do you think there is some truth in that?

Sylvester Stallone has been taking gear for like fifty years… so perhaps there’s something to it… or perhaps he has god tier genes or great, top of the line healthcare