Subs to help others!! I know you guys will come through!! Plz

Has anyone tried any subs that have helped their loved ones?? With illness? Addictions?? Please i need help for my bf to stop drinking and doing other harmful substances. He s good person, genuinely kind. But we are struggling with this issue. He’s trying as well. But I have had tremendous success with subs for myself so I wanted to do some to help him as well!!