What Happens in Rehab: From Admission Day to Discharge

What happens on the first day of rehab?

It starts before arrival, with a phone screening about what your loved one uses, when they last used, their health, medications and insurance. Be honest on that call, and encourage them to be honest too. Past seizures, overdoses, mental health symptoms and every medication matter for safety.

On arrival there are consent forms, a bag search, and a check of each prescription against its label. Over the next day or two come a medical and mental health evaluation and a drug test, which tells the medical team what withdrawal to watch for. If your loved one needs withdrawal care first, that may happen in the same building or at a separate detox, which is a first step rather than the treatment itself (how detox fits before treatment). By the end of the first week there should be a written treatment plan with goals.

If there’s a wait for a bed and your loved one drinks heavily every day or takes benzodiazepines such as Xanax, Klonopin or Valium, ask a doctor before they stop, because quitting suddenly can cause seizures (why stopping suddenly can be dangerous).¹²

What should they pack, and what stays home?

Every program has its own list, so call and ask for it. This one covers what most programs want and what they commonly refuse.

If your loved one takes buprenorphine, methadone or naltrexone, confirm before admission that the program will continue it, and for methadone, ask how staff will confirm the dose with the clinic. Medication combined with counseling has been shown to improve survival and help people stay in treatment.⁵ Our guide to medications for addiction explains each one.

What does a typical day in rehab look like?

Residential programs provide intensive treatment every day.³ Times and activities vary, but many days look roughly like this:

Day programs (PHP) and intensive outpatient programs (IOP) offer the same kinds of sessions, but your loved one goes home at night.⁶ Here is how day and evening programs differ.

What actually happens in those sessions?

Most of the day is counseling, one-on-one or in groups.⁶ Good programs use proven approaches such as cognitive behavioral therapy (CBT),⁴ which looks at the feelings and situations that lead to use and builds skills to cope with them.⁷ Many also connect people with mutual-help groups as extra support.³⁷

Depression, anxiety and PTSD often show up alongside a substance use disorder, and treating both is critical for recovery.³ (See care for co-occurring mental health conditions.) Good treatment also covers physical health and the parts of life that use has damaged, like legal trouble, money, work and housing,³ and a case manager usually helps with insurance and court dates. For alcohol use disorder, three medications are approved in the U.S.: naltrexone, acamprosate and disulfiram.⁷ Staff watch progress closely, often with drug tests, because early recovery is when the risk of a return to use is highest.³

Why can’t we call or visit right away?

Some residential programs limit calls and visits for the first several days so people can settle in. It’s a common rule and doesn’t mean anything has gone wrong.

If you’re offered family sessions, go. SAMHSA counts involving family, when the person in care wants it, as a sign of quality treatment,⁴ and NIAAA notes that for alcohol problems, strong family support through family therapy improves the chances of staying sober compared with individual counseling alone.⁷ Those sessions are the place for hard conversations, so keep phone calls short and kind. Meanwhile, clear alcohol and drugs out of the house, agree on what home will look like when they return, and find some support for yourself.

Will the program tell us how they’re doing?

Only if your adult loved one signs written consent, in most cases. Substance use treatment records have extra federal protection under 42 CFR Part 2, on top of HIPAA. Programs had to comply with an updated Part 2 rule by February 16, 2026, and patient consent is still central.⁸ Without consent, a program that only treats substance use generally may not even confirm your loved one is there.⁹

Privacy rules limit what staff can tell you, not what you can tell them. You can call or write to share history, safety concerns or medications even if staff can’t respond. Our guide to privacy rules and release forms has more.

What if they call and want to leave?

Calls asking to come home are common in the first week, when withdrawal, poor sleep, homesickness and fear are strongest. If the stay is voluntary, an adult can usually choose to leave. Talk with the treatment team before you agree to anything, and answer warmly without deciding on the spot.

If they do leave after using opioids, their tolerance will have dropped, and the amount they used before can now cause a fatal overdose (what to know).³

How long will they stay, and who decides?

Residential care usually lasts a few weeks to a few months,⁶ and the length should follow your loved one’s progress rather than a fixed number of days. An insurance plan may review the stay as it goes. See typical lengths of stay and who approves them.

What happens at discharge?

Before your loved one walks out, the next level of care should be booked, with a date, time and address. The VA advises building an aftercare plan so that move goes smoothly.³ Before discharge day, ask for:

• The first follow-up appointment: IOP, outpatient therapy or a prescriber
• Enough medication to bridge to the next prescriber
• A written relapse prevention plan, shared with family if your loved one agrees
• Naloxone for your loved one and for the home, if opioids were involved³
• A named contact for the first weeks home

A printed list of meetings with nothing booked is not a plan. Our guide to the first 30 days after rehab covers what comes next, and the treatment overview shows how each level of care connects.