Does rehab work? An honest answer
What research can say, what it cannot, and why to doubt any promise.
The short answer
Does rehab work? Treatment can work, and many people recover. NIDA, the federal institute that studies drug use, calls substance use disorders treatable. But no one can promise a result for one person, and any program that does is claiming more than it can know.
Claims to be careful with
- A promise or guarantee of recovery
- A success rate with no explanation
- A cure in a set number of days
Ask how any number was measured, who was counted, and who checked it.
What research says
NIDA’s treatment guide says research that follows people over time finds most people who get into treatment and stay in it stop using drugs and do better at work, with others and in their mental health. It also says results depend on the person’s problems, how well the treatment fits, and how much they take part.
The same guide also says remaining in treatment for long enough is critical, and that detox alone is rarely enough. Read how long rehab takes for more.
How relapse compares with other chronic illnesses
Relapse means going back to using after a period of stopping or cutting down. NIDA compares it to relapse in other chronic illnesses. Its chart puts relapse rates at 40 to 60 percent for substance use disorders, and at 50 to 70 percent for both high blood pressure and asthma. Those numbers come from a study published in JAMA in 2000.
NIDA’s point is that relapse is common across long-term illnesses. A person with asthma whose symptoms come back would see a doctor and adjust the plan. NIDA says the same applies here: relapse does not mean treatment has failed. It means treatment may need to be restarted, changed or replaced with another approach.
These numbers are group figures, so they cannot tell you what will happen to you or your family member. Relapse can also be dangerous. After time away from opioids, a person’s tolerance drops and overdose risk rises. See life after rehab.
Why to doubt programs that promise outcomes
Addiction is a long-term condition, and results differ from person to person. A promise of recovery goes beyond what the research can support. If a program quotes a success rate, ask what it means. Does success mean finishing the program, or staying off drugs and alcohol a year later? Does it count people who left early? Who collected the numbers, and could anyone outside the program check them?
A fair program can talk about what it does, how it follows up and what happens if a person struggles, and that tells you more than a percentage. This site does not publish success rates for any program, because we have no reliable way to check them. See how this site works.
What may matter more than a promise
Look for a program that fits the person and keeps adjusting. How to choose a program covers the signs of quality to look for. Then use our questions to ask on the phone.
Questions to ask about results
- How do you define success?
- Who is counted in that number?
- How do you follow up with people?
- What happens if someone relapses?
Common questions
Can addiction be cured?
NIDA calls substance use disorders treatable chronic medical conditions from which people can recover. Many people need long-term care.
Does relapse mean rehab failed?
No. NIDA says relapse does not mean treatment has failed. It signals a need to talk with a provider about restarting or changing treatment.
Does treatment work if a person is pressured to go?
It can. NIDA says treatment does not need to be voluntary to work. See helping a family member.
Should I trust a high success rate?
Treat it with care until you know how it was measured. We do not list success rates, and a number alone tells you very little.
