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Stopping a substance is a medical event more often than people expect, and how hard the stretch gets depends on what was used and for how long. The signs that need urgent care look different from ordinary discomfort, and telling those apart changes what a person does next. Medication, cost and the questions worth asking a program all belong to the same decision.
Key Points About Drug Detox
- Detox manages withdrawal, and ASAM says withdrawal management alone does not effectively treat alcohol use disorder.
- Alcohol and benzodiazepine withdrawal can cause seizures or delirium, so neither should be stopped suddenly without medical guidance.
- Opioid withdrawal is rarely life-threatening, but tolerance drops during detox, so overdose risk rises afterward.
- An assessment decides whether detox happens in a clinic, a residential program or a hospital.
- Detox is a first step, not treatment itself; what follows is rehab, therapy or medication.
In This Article
- What Is Drug Detox?
- How Detox Works: Evaluation, Stabilization and Next Steps
- Withdrawal Timelines by Substance
- When Withdrawal Can Be Dangerous
- Where Detox Happens: Home, Outpatient, Residential or Hospital
- Medications Used During Detox
- Detox Isn’t Treatment: What Comes Next
- How Much Detox Costs and How to Pay
- How to Find a Detox Program
- Frequently Asked Questions About Drug Detox
What Is Drug Detox?
Drug detox is supervised care while the body adjusts to going without a substance. Staff watch for problems, ease symptoms, and give medication when needed. Its clinical name now is withdrawal management. Detox treats physical dependence and withdrawal, not the substance use disorder itself. The American Society of Addiction Medicine (ASAM) puts it plainly: “alcohol withdrawal management alone is not an effective treatment for alcohol use disorder.”
It is no flush of toxins; nothing in it purges the body. It targets withdrawal, what a person feels as the substance clears.
Whether someone needs supervised detox is a clinical judgment. An assessment weighs physical dependence on alcohol, benzodiazepines or opioids, a past severe withdrawal or one that brought a seizure, and other medical or mental health conditions.
In 2024, state-reported admissions to free-standing residential detox numbered 198,680, or 12.5% of the 1,583,823 admissions states reported, according to the Substance Abuse and Mental Health Services Administration (SAMHSA). Alcohol was the main substance in 36.5% of admissions, SAMHSA’s TEDS data show.
How Detox Works: Evaluation, Stabilization and Next Steps
Detox follows a short clinical course, not a single appointment, and it usually moves through three stages: a clinician sizes up your health and how hard withdrawal is likely to be before anything starts, monitoring and medication carry you through the adjustment, and the treatment that follows gets arranged before you leave.
The first stage is the evaluation. A clinician works out how your body is likely to respond to stopping, according to the American Society of Addiction Medicine (ASAM) Criteria FAQ. That means asking which substances you use and when you last used them, how earlier withdrawals went, and what other conditions or medications are in play, along with your vital signs.
Stabilization is the stage most people picture as detox. Staff track symptoms closely, often scoring them on a standard withdrawal scale so a change gets measured rather than guessed at, then add medication, fluids and rest as needed. For alcohol withdrawal, ASAM’s clinical practice guideline on alcohol withdrawal management covers that monitored stretch, medications included. Steady support belongs here as much as the medication does.
The third stage is the handoff. Before discharge, the team arranges whatever care comes next, whether that is residential treatment, outpatient visits or medication, and how quickly follow-up starts. That planning is part of detox, not paperwork.
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Withdrawal Timelines by Substance
How long withdrawal lasts turns on the substance, the amount and duration of use, and the person’s health. Alcohol and short-acting opioids usually bring symptoms within a day of the last dose. Benzodiazepine withdrawal can begin days later and run for weeks, and a joint clinical practice guideline on benzodiazepine tapering published in 2025 notes that a taper supervised by a prescriber can run for months or years.
No authoritative source publishes one overall detox length, so the ranges below are per substance and typical rather than predictive. A clinician sets the plan, and combining substances can shift the timing again.
| Substance | When symptoms usually start | How long they last | Main safety concern | Learn more |
|---|---|---|---|---|
| Alcohol | Symptoms can start about 8 hours after the last drink, or days later for some people (MedlinePlus) | Worst around 24 to 72 hours, with symptoms that may last weeks (MedlinePlus) | Seizures, usually 8 to 48 hours after the last drink (StatPearls); withdrawal delirium (DTs), most often at 48 to 96 hours, sometimes 7 to 10 days (MedlinePlus) | alcohol withdrawal symptoms, alcohol withdrawal seizures |
| Benzodiazepines | Starts 2 to 10 days after a person stops, varying by the drug (StatPearls) | Can last weeks (joint guideline) | Seizures and delirium if stopped suddenly (FDA; joint guideline) | benzodiazepine withdrawal, Xanax withdrawal |
| Opioids | Heroin brings symptoms in about 12 hours, methadone in about 30 (MedlinePlus) | Often 3 to 10 days (StatPearls) | Miserable but seldom life-threatening; the chance of overdose goes up once detox ends (MedlinePlus) | opioid withdrawal, tramadol withdrawal |
| Stimulants (cocaine, meth, prescription stimulants) | Varies by drug | Flattened mood and tiredness, with depression that may run several weeks (StatPearls) | Not usually life-threatening; for thoughts of suicide, call or text 988 | cocaine withdrawal, crack withdrawal, meth detox, Adderall withdrawal |
| Cannabis | Within about 24 hours (StatPearls) | Peaks around day 2 to 3, eases in about 1 to 2 weeks (StatPearls) | Rarely dangerous; irritability, trouble sleeping and anxiety are often reported | cannabis withdrawal |
| Other substances | Varies | Varies | Depends on the substance; see each guide | kratom withdrawal, ecstasy withdrawal, gabapentin withdrawal |
When Withdrawal Can Be Dangerous
Stopping suddenly without medical guidance is never safe for someone who drinks heavily or takes a benzodiazepine regularly, because both can bring on seizures and delirium. Opioid withdrawal rarely threatens life, though overdose risk climbs afterward. Stimulants and cannabis are not usually dangerous, but mood changes need watching.
Roughly 3-5% of people going through alcohol withdrawal develop withdrawal delirium, which for years was called delirium tremens or DTs, according to StatPearls. StatPearls reports deaths from it near 20% before modern care and around 1% now, figures for delirium only. The American Society of Addiction Medicine replaced the old term with “alcohol withdrawal delirium” in 2020, and a past alcohol withdrawal seizures is reason to involve a clinician early.
For people who take a benzodiazepine regularly, the FDA’s 2020 boxed warning is direct: “Stopping them abruptly or reducing the dosage too quickly can result in withdrawal reactions,” seizures among them. A joint clinical practice guideline published in 2025 on tapering benzodiazepines calls for a prescriber to plan a slow taper that may last months or longer, and Xanax withdrawal is handled the same way.
Tolerance drops during detox, so most opioid overdose deaths happen to people who have just detoxed, MedlinePlus reports. Naloxone kept nearby can reverse an opioid overdose.
Depression can last several weeks after a person stops using stimulants, StatPearls reports. Thoughts of suicide are a reason to call or text 988.
Call 911 if someone has a seizure, is badly confused or hallucinating, or cannot stay awake.
Where Detox Happens: Home, Outpatient, Residential or Hospital
Detox does not always mean a hospital stay. A person at lower risk of severe withdrawal can often go through it as an outpatient, living at home and coming in for medication and check-ins. Some people need staff on hand around the clock, in a residential program or in a hospital. Unsupervised detox at home is not safe for someone who is dependent on alcohol or a benzodiazepine.
The setting follows a clinical assessment, not a preference. Someone who needs round-the-clock care is looking at inpatient rehab or a hospital, while a person with lower risk can start with outpatient rehab and keep living at home.
In the ASAM Criteria, withdrawal management sits inside levels 1.7, 2.7 and 3.7, and level 4 for hospital care. The old 3.2-WM level was folded into 3.5. Plenty of programs still use the older withdrawal management labels, such as 3.7-WM, so a program’s own wording may not match its level number.
ASAM’s clinical practice guideline on alcohol withdrawal management notes that for people with limited risk factors, alcohol withdrawal can usually be managed safely in an ambulatory setting, meaning outpatient care.
| Setting | ASAM level (4th ed.) | What it looks like | Generally used when |
|---|---|---|---|
| At home without medical supervision | None | You stop on your own | Not advised for alcohol or benzodiazepine dependence, because of the risk of seizures and delirium |
| Outpatient withdrawal management | 1.7 Medically Managed Outpatient | Appointments, medication and staff check-ins, all while you stay home | When severe withdrawal is less likely and the person has a stable place to live |
| Intensive outpatient with daily medical care | 2.7 Medically Managed Intensive Outpatient | Care for several hours on most days, with medical monitoring | More support needed than weekly visits |
| Clinically managed residential | 3.5 Clinically Managed High-Intensity Residential | 24-hour structured setting with staff support | When someone lacks safe housing but carries less medical risk |
| Medically managed residential | 3.7 Medically Managed Residential | 24-hour nursing and physician-directed care | Higher withdrawal risk or other health needs |
| Hospital | 4 Medically Managed Inpatient | Hospital-level medical care | Withdrawal that is severe or complicated, or another serious medical or psychiatric condition |
Medications Used During Detox
Medication can make withdrawal easier and safer, and what a clinician reaches for depends on the substance being stopped. Some drugs ease symptoms, and others lower the risk of a seizure or another complication.
Benzodiazepines come first for alcohol withdrawal, according to the American Society of Addiction Medicine (ASAM). For someone who has been taking benzodiazepines regularly, care means a gradual taper arranged with a prescriber rather than an abrupt stop, the approach the joint 2025 clinical practice guideline on benzodiazepine tapering takes.
Opioid withdrawal has several options. MedlinePlus names methadone, buprenorphine and clonidine. Lofexidine (Lucemyra) is approved by the FDA “for mitigation of opioid withdrawal symptoms to facilitate abrupt opioid discontinuation in adults”, for up to 14 days. Lofexidine eases withdrawal; it is not a treatment for opioid use disorder.
Two of those drugs can keep going after detox. Buprenorphine and methadone both serve as long-term treatment for opioid use disorder, an approach called MOUD. Naltrexone is different: it manages no withdrawal and starts only “after the person has completely stopped taking other opioid drugs”, according to the National Institute on Drug Abuse (NIDA), to help prevent a return to use.
Stimulant and cannabis withdrawal have no specific detox drug. Care aims at the symptoms themselves, as the StatPearls chapters on those substances describe.
| Medication | Used for | What to know |
|---|---|---|
| Benzodiazepines | Alcohol withdrawal; tapering off long-term use | First-line; a person on them long term tapers gradually |
| Buprenorphine | Opioid withdrawal | Can continue as long-term treatment |
| Methadone | Opioid withdrawal | Can continue as long-term treatment |
| Lofexidine (Lucemyra) | Opioid withdrawal | Approved for up to 14 days; a withdrawal medicine |
| Clonidine | Opioid withdrawal symptoms | Eases symptoms during withdrawal |
Six medications are FDA-approved for opioid use disorder and alcohol use disorder. This page compares them, explains how long treatment can run and what insurance pays, and lays out the federal rules that changed since 2023. It closes with the questions worth asking a program ...
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Last Updated: October 26, 2026
Read Time: 12 min
Detox Isn’t Treatment: What Comes Next
Detox and rehab are different services. Detox manages withdrawal, and NIDA notes that this alone changes little about long-term drug use; its treatment principles hold that most people need “at least 3 months in treatment”.
What follows is usually one of a few paths: residential or inpatient rehab, intensive or standard outpatient care, medication for an opioid or alcohol use disorder, or therapy and recovery support. Which one fits turns on the substance, length of use, and the assessment. Comparing levels of care before detox ends leaves time to arrange intake.
Timing matters too. Detox tends to end on a known date, so the plan can be settled while withdrawal is managed, and aftercare carries support on once the first program finishes.
Opioids add a hazard here. Tolerance drops during detox, so a dose someone handled before can cause an overdose afterwards, a risk MedlinePlus flags for opioid withdrawal. That is one reason medication for opioid use disorder, such as buprenorphine or methadone, continues after detox rather than ending with withdrawal.
How Much Detox Costs and How to Pay
No national price list sets what detox costs. What you pay depends on the setting, on how many days care runs, and on your insurance.
HealthCare.gov says: “All Marketplace plans cover mental health and substance abuse services as essential health benefits.” Federal parity still applies: the Mental Health Parity and Addiction Equity Act holds mental health and substance use benefits to the same limits as medical and surgical benefits. The 2024 parity rule’s newer provisions are not being enforced, the Departments of Labor, Health and Human Services, and the Treasury said in a May 15, 2025 statement.
In SAMHSA’s 2024 survey of substance use and mental health treatment facilities, 78.3% accepted private insurance and 77.8% accepted Medicaid. Both figures cover all kinds of facilities, not detox programs alone.
The total also turns on how insurance covers rehab under your plan, where a deductible, a copay or a network rate changes the bill. Call the plan before intake, and ask the program what it charges and whether Medicaid coverage for addiction treatment applies where you live.
How to Find a Detox Program
Start with a locator. FindTreatment.gov searches treatment programs by ZIP code, and the treatment centers by state and city directory at Addictions.com does the same by place.
A phone call covers the rest. The Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline answers at 1-800-662-HELP (4357), has a TTY line at 1-800-487-4889, and takes a text of your ZIP code to 435748.
For detox itself, the Addictions.com helpline at
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costs nothing to call and puts you in touch with a treatment provider. Ask about detox programs, insurance and start dates, and calling does not commit you to anything.
Before you choose, ask a few questions. SAMHSA’s guide to finding quality treatment opens with a direct one: “Has the program been licensed or certified by the state?” Then ask which medications staff use for withdrawal, whether the program will arrange the next level of care, what your insurance covers and what you will owe, and how mental health needs are handled.
Frequently Asked Questions About Drug Detox
It depends on the substance and the risk the withdrawal carries. Dependence on alcohol or a benzodiazepine calls for medical guidance, since stopping either abruptly can be dangerous for people who drink heavily or take them regularly. An assessment decides which setting fits.
The withdrawal timelines by substance differ enough that no single number holds. Opioid withdrawal often lasts 3-10 days, according to StatPearls, and cannabis withdrawal settles in about 1-2 weeks. MedlinePlus notes that alcohol symptoms can go on for weeks, and a joint guideline on benzodiazepine tapering puts a taper at months or longer.
Unsupervised detox at home is not safe for alcohol or benzodiazepine dependence, since withdrawal from either can become an emergency. For some people, supervised withdrawal management on an outpatient basis is an option, ASAM notes.
No. Detox manages withdrawal, and rehab treats the addiction itself. ASAM’s position is that getting someone safely through withdrawal is not treating alcohol use disorder on its own.
The next level of care, whether residential, outpatient or medication, is ideally arranged before detox ends. For opioids, tolerance falls during detox, so overdose risk rises afterward, and medication for opioid use disorder (MOUD) can continue past it.
Yes. Detox can stand alone as a service, though NIDA’s treatment principles hold that continuing into treatment improves the chances of lasting change.
Detox runs in three stages: an assessment of withdrawal risk, monitoring and medication while the body adjusts, and a plan for the care that follows.
Every Marketplace plan has to cover substance use treatment, according to HealthCare.gov. A SAMHSA survey of treatment facilities found that most take private insurance or Medicaid. What you owe depends on your insurance coverage for rehab, so ask the plan or the program.
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