Son Living In House Of Drug Users

I need help to get my 19year old son back home to help him. Found out today that the house he has been spending all his time and now sleeping at is a users house not sure what to do about how to get him home. He uses drugs to and is going nowhere not working and no motivation to work need to get him away from druggy mates does anyone have some helpful advice
Since he's of legal age it's going to be hard to get him home again unless he wants to.

Is he driving a car you own, or pay for or pay the insurance on? If so, take it back.

Who pays for his phone if he's got one? Would you be comfortable turning it off?

Where is he getting money from? If you're giving him money, stop.

Thanks he pays for his own ph which hardly ever has credit and I think hes blown the car engine up so that's stuffed we do not give him any money the lady he lives with gives them crack so I found out tonight she's bad news
I am so sorry to hear this is happening to you. My son is in the same situation. The pull for them is so very hard to be there. These people are the evil. Do not have anything to do with them. Distance from the situation has helped us. We pray and enjoy the times he does come and see us.
The saddest part is you can not make them stay away from them. Once you accept this you can get help for yourself.
Go to Alanon work the programme, first you save yourself. Yourself is the only person you can save that is the hardest thing I had to accept.
My thoughts and prayers are with you and all of us.