Nah, just nicotine. A drug, yes, but typically not what people mean by 'high on drugs'.

As a homeless person I have been seriously injured by being assaulted by many Fentanyl addicts though, shit has a horrid and distinct smell.

Having seen first hand what that kind of stuff does to people, I would have to be a complete idiot to even try it.

I struggle to come up with a more succinct way to describe a hardcore fentanyl addict as anything other than a zombie that alternates from narcoleptic and shambling when high, and extremely violent and aggressive when beginning to enter withdrawal.