I would talk to your daughter, get what information and facts you can about drugs and what is going on at your house (whether she has or has not been stealing your prescription meds). That you are unfamiliar with xanax or the state of your own medicines and have decided your daughter has "disowned" you for turning in her boyfriend for an outstanding warrant without talking with her, I would first get more informed before trying to help. That your daughter has a boyfriend you do not like, she may be unfamiliar with/not part of his drug use, in treatment and the xanax prescribed to her, who knows? Talk to her and/or do more research/study of what has/is going on around you.