How Can You Commit an Adult Who Is Schizophrenic and a Drug Addict?

Not long-term, but for evaluation, treatment, and detox. She is not using illegal street drugs, but large amounts of Tramadol and Darvocet, prescriptions of which she obtained offline from pharmacies in other countries, without her psychiatric doctor’s knowledge because she has a history of alcoholism. We cannot talk to her doctor to tell him this because of doctor-patient-confidentiality. She has not proven a danger to herself or others, but is delusional to the point of not being able to function within our family, has auditory hallucinations, and I’m sure many other symptoms I do not know about. She stays up all night, which only makes her symptoms worse the next day. There is no one she is close to, because she thinks our entire family is out to get her and doing things that we aren’t, she won’t go to any stores because they think she is talking about her, and won’t even go get the mail because she thinks the neighbors are against her. She sits inside all day, delusional and on drugs, and we no longer know what steps to take