Taking drugs all the time other than for medical reasons is the definition of an addict.
If you're ok with being a drug addict so that you can have muscles then go for it.
Johnny Winter, the guitarist, was a heroin addict for just about all his adult life. He never beat his addiction and took methadone every day.
He said he loved it.
Only the naive believe Ronnie Coleman, as gifted genetically as he is, competed at the highest levels as a natty.