How long does rehab take?
Typical stays by level of care, and what research says about time in treatment.
The short answer
How long rehab takes depends on the person. Detox often takes days. A residential stay is often a few weeks to a few months. NIDA, the federal institute that studies drug use, says most people with an addiction need at least 3 months in treatment, and longer often helps.
What NIDA says about time in treatment
NIDA’s treatment guide says there is no set length of treatment, because people move at different rates. It also says that most people with an addiction need at least 3 months in treatment to greatly reduce or stop their drug use.
The same guide says that for residential or outpatient care, staying less than 90 days generally has limited effect, and that longer treatment is recommended. For methadone, a medicine for opioid use disorder, it says 12 months is considered the minimum, and some people benefit for many years.
NIDA is talking about time in treatment, and many people spend that time across more than one level of care. Ask a program how it would count yours. Recovery is often a long process, and NIDA says it frequently takes more than one episode of treatment.
Typical time at each level
Detox. Many stays run a few days to about a week, and some run longer. Detox treats withdrawal. NIDA says it is only the first stage.
Residential care. NIDA says these programs usually last a few weeks to a few months, and that longer stays are also available. See residential care.
Day programs and outpatient care. Length varies widely by program and by need. Partial hospitalization and intensive outpatient often step down over time to weekly counseling. Ask each program what it expects.
Medication treatment. Some people take medicine for months or years. How long is a choice for you and your doctor, and it should not be rushed.
What can change the length
How long you need depends on what you use, how long you have used it, your health, and your home and work life. It can also change as you go. NIDA says plans should be reviewed and adjusted over time, so a program should talk with you about moving up or down in care.
Insurance can shape the length too. Your plan may approve a certain number of days at a time, so ask the program how it handles that, and call your plan. See private insurance.
If time is your main worry
Many people worry about work, children or bills. Start by asking about options that fit around them, such as evening outpatient care. See time off work. Shorter care may still be a place to begin, so tell a program what you can manage and ask what it would suggest.
Questions to ask about length
- How long is a typical stay?
- Who decides when I am ready to leave?
- What does my plan approve?
- What care comes next?
Common questions
Is 30 days enough?
It may be a start, but NIDA says most people need at least 3 months in treatment. Ask what care would follow a shorter stay.
Do I have to be away for 3 months?
Not always. Many people move through different levels of care, including outpatient care while living at home. A doctor or program can help you plan it.
Can I leave early?
Adults in voluntary care can generally leave, but talk with staff first so you leave with a plan. Read life after rehab for what that plan might cover.
What if I need treatment more than once?
Many people do. NIDA says recovery frequently takes more than one episode of treatment. See does rehab work?
