Doping

I'm far from an expert, but to my understanding, to keep muscle development at a consistent level you need to keep training at that level. So when the person stops doping, they can no longer train at such a level, and as such their physical capabilities would drop to what they can do naturally.

How long does it take though? I'm talking about maintenance after the period of development. Would that really be unrealistic without the "help"?

I would be interested to hear from a medical expert about this.