Educational content only. This article summarizes publicly available information and is not medical advice. If you or someone you love is struggling with substance use, call SAMHSA's free, confidential helpline: 1-800-662-HELP (4357).
In brief: Detoxing at home is not safe for everyone. Alcohol and benzodiazepine withdrawal can cause seizures and can become life-threatening, so they need medical care. Opioid, stimulant, and cannabis withdrawal are usually not deadly on their own, but they carry risks like overdose and suicidal thoughts. A doctor can help pick a safe setting.
It depends on the substance. Stopping alcohol or benzodiazepines (such as Xanax or Valium) after heavy or long-term use can cause seizures and can become life-threatening, so these withdrawals need a medical plan. Withdrawal from opioids, stimulants, and cannabis is usually not deadly by itself, but it still has real dangers, including overdose and suicidal thoughts.
Is it safe to detox at home?
For alcohol and benzodiazepines, unsupervised home detox is not safe. MedlinePlus says “alcohol withdrawal is a serious condition that may quickly become life-threatening” (MedlinePlus). The FDA warns that stopping benzodiazepines abruptly or cutting the dose too fast can cause withdrawal reactions, including seizures, which can be life-threatening (FDA).
For other drugs, the danger is different. Opioid withdrawal is very uncomfortable but not usually life-threatening, according to MedlinePlus (MedlinePlus). The bigger risks are dehydration, breathing vomit into the lungs, and overdose if the person uses again.
Some people with mild to moderate alcohol withdrawal can be treated as outpatients, with daily check-ins with a provider (MedlinePlus). That is still medical care, not detoxing alone. NIAAA advises people to “seek medical help to plan a safe recovery” (NIAAA).
How risky is withdrawal from each substance?
Risk depends on the drug, how much and how long it was used, and your health. This table summarizes what federal health sources say.
| Substance | Main withdrawal risk | Typical timing | Medical supervision recommended? |
|---|---|---|---|
| Alcohol | Seizures, hallucinations, and delirium tremens (DTs); can become life-threatening (MedlinePlus) | Starts within 8 hours of the last drink; peaks by 24 to 72 hours; DTs most often 48 to 96 hours after, sometimes 7 to 10 days (MedlinePlus, MedlinePlus DTs) | Yes. Moderate to severe cases may need a hospital; mild to moderate cases may be treated as an outpatient with daily visits (MedlinePlus) |
| Benzodiazepines | Seizures that can be life-threatening if stopped suddenly or cut too fast (FDA) | Protracted withdrawal may last weeks to as long as 12 months (FDA) | Yes. Taper slowly under a prescriber; do not stop suddenly (FDA) |
| Opioids, including fentanyl | Not usually life-threatening, but vomiting can lead to dehydration or breathing vomit into the lungs; overdose risk after withdrawal because tolerance drops (MedlinePlus) | Usually within 12 hours of last heroin use and within 30 hours of last methadone (MedlinePlus) | Yes. Contact a provider; medicines such as buprenorphine and methadone ease withdrawal (MedlinePlus) |
| Stimulants (cocaine, meth) | Depression, intense cravings, and, for some people, suicidal thoughts (MedlinePlus, NIDA) | Meth symptoms peak 2 to 3 days after last use and may last a week; low mood and cravings can last months (NIDA, MedlinePlus) | Medical and mental health support is advised; a live-in program may be recommended if symptoms are severe (MedlinePlus) |
| Cannabis | Irritability, anxiety, restlessness, poor sleep, low appetite (NIDA); usually light to moderate (Bonnet and Preuss) | Physical symptoms start about 1 to 3 days after last use; usually lasts up to 3 weeks (Bonnet and Preuss) | Usually can be treated in an outpatient setting; inpatient care may be needed in some cases (Bonnet and Preuss) |
For more detail, see our guides to alcohol withdrawal symptoms, how long alcohol withdrawal lasts, fentanyl, and meth withdrawal.
Why is fentanyl a special concern?
Pharmaceutical fentanyl is 50 to 100 times more potent than morphine (CDC). Powdered fentanyl can be mixed into heroin, cocaine, and meth, so people may take it without knowing (CDC).
After withdrawal, a person can overdose on a much smaller dose than they used to take (MedlinePlus). Keep naloxone nearby, because it can reverse an overdose from opioids, including fentanyl (CDC). Read the full fentanyl guide.
What warning signs mean you should call 911 now?
Call 911 or go to the emergency room right away if you see any of these during withdrawal:
- Seizures. MedlinePlus says to call 911 if seizures happen during alcohol withdrawal (MedlinePlus). The FDA also says to call 911 for seizures linked to benzodiazepines (FDA).
- Hallucinations, severe confusion, fever, or an irregular heartbeat. These are reasons for emergency care in alcohol withdrawal (MedlinePlus).
- Delirium tremens. Signs include sudden, severe confusion and seeing or feeling things that are not there. DTs are a medical emergency and may be life-threatening (MedlinePlus).
- Trouble breathing (FDA).
- Suicidal thoughts. Cocaine withdrawal may bring suicidal thoughts in some people (MedlinePlus). Call or text 988, or call 911 if the person is in immediate danger.
What does medical detox do?
Medical detox treats withdrawal with monitoring and medicine. For alcohol, inpatient care can include giving sedatives until withdrawal is complete (MedlinePlus). NIAAA says doctors can prescribe medicines that make withdrawal “safer and less distressing” (NIAAA).
For opioids, methadone relieves withdrawal symptoms, and buprenorphine can shorten detox (MedlinePlus). Clonidine can ease anxiety, agitation, and sweating, but it does not reduce cravings (MedlinePlus). NIDA also lists lofexidine and extended-release naltrexone among opioid treatment options (NIDA).
Learn how these medicines fit into longer care in our guide to medication-assisted treatment.
What levels of withdrawal management are there?
Care ranges from office visits to 24-hour hospital-level programs. NIAAA describes these settings for alcohol use disorder (NIAAA):
| Setting | What it involves |
|---|---|
| Outpatient | Regular office, virtual, or telehealth visits for counseling, medicine, or both |
| Intensive outpatient or partial hospitalization | Coordinated outpatient care for complex needs |
| Residential | A low- or high-intensity program in a 24-hour treatment setting |
| Intensive inpatient | Medically directed 24-hour services; may manage withdrawal |
For alcohol, MedlinePlus says mild to moderate cases can often be treated as outpatients, while moderate to severe cases may need hospital care (MedlinePlus). A clinician decides the right level based on your history and symptoms.
Can you stop benzodiazepines on your own?
No. Never stop a benzodiazepine suddenly. In 2020, the FDA required an updated Boxed Warning for all benzodiazepines to cover abuse, misuse, addiction, physical dependence, and withdrawal reactions (FDA).
The FDA tells patients not to stop suddenly without first talking with a health care professional. It tells prescribers to use a gradual taper (FDA). Some people have withdrawal symptoms lasting many months (FDA).
Mixing benzodiazepines with opioids or alcohol raises the risk of serious harm, including dangerously slowed breathing and death (FDA). See our guides on benzo detox at home and detoxing from Xanax.
Is detox enough to treat addiction?
No. NIDA says “detoxification is not the same as treatment and is not sufficient to help a person recover” (NIDA). Detox alone, without treatment after, generally leads to using again (NIDA).
The good news is that addiction is treatable. NIDA says relapse rates for substance use disorders are 40 to 60 percent, similar to other chronic illnesses like high blood pressure and asthma (NIDA). Relapse is a signal to adjust treatment, not proof it failed.
What comes after detox?
Plan the next step before detox ends. Options include:
- Medicine. For opioid addiction, NIDA says medicine should be the first line of treatment, usually combined with behavioral therapy or counseling (NIDA).
- Behavioral therapy. For meth, NIDA describes contingency management and cognitive behavioral therapy; there is no FDA-approved medicine for stimulant use disorder (NIDA).
- Ongoing care in the right setting, from outpatient visits to residential programs (NIAAA).
If alcohol is the concern, start with our alcohol addiction hub.
Does insurance cover medical detox?
Often, yes, though costs vary by plan. HealthCare.gov says all Marketplace plans cover mental health and substance abuse services as essential health benefits (HealthCare.gov). Pre-existing conditions are covered, and plans must follow parity rules that keep these benefits in line with medical and surgical care (HealthCare.gov).
If you have no insurance or are underinsured, the SAMHSA National Helpline can refer you to your state office. It can often refer you to programs with a sliding fee scale or that accept Medicare or Medicaid (SAMHSA). Call your plan to ask what detox services it covers before you go, if time allows.
Sources
- Alcohol withdrawal, MedlinePlus Medical Encyclopedia, National Library of Medicine
- Delirium tremens, MedlinePlus Medical Encyclopedia, National Library of Medicine
- Opiate and opioid withdrawal, MedlinePlus Medical Encyclopedia, National Library of Medicine
- Cocaine withdrawal, MedlinePlus Medical Encyclopedia, National Library of Medicine
- FDA requiring Boxed Warning updated to improve safe use of benzodiazepine drug class, U.S. Food and Drug Administration, 2020
- Treatment for Alcohol Problems: Finding and Getting Help, National Institute on Alcohol Abuse and Alcoholism
- Treatment and Recovery (Drugs, Brains, and Behavior: The Science of Addiction), National Institute on Drug Abuse
- Methamphetamine, National Institute on Drug Abuse
- Cannabis (Marijuana), National Institute on Drug Abuse
- Bonnet U, Preuss UW. The cannabis withdrawal syndrome: current insights. Substance Abuse and Rehabilitation, 2017
- Fentanyl, Overdose Prevention, Centers for Disease Control and Prevention
- Mental health and substance abuse health coverage options, HealthCare.gov
- SAMHSA’s National Helpline, Substance Abuse and Mental Health Services Administration
Frequently asked questions
Can I detox from alcohol at home?
Only with a medical plan. Mild to moderate cases may be treated as an outpatient with daily provider visits, but moderate to severe withdrawal may need a hospital (MedlinePlus).
How long does alcohol withdrawal last?
Symptoms usually start within 8 hours and peak by 24 to 72 hours, but they may go on for weeks (MedlinePlus).
Is opioid withdrawal deadly?
Usually not. MedlinePlus says it is very uncomfortable but usually not life-threatening. Complications like dehydration and overdose after tolerance drops are the main dangers (MedlinePlus).
Can I quit Xanax cold turkey?
No. The FDA warns that stopping benzodiazepines abruptly can cause seizures that can be life-threatening. Talk to your prescriber about a taper (FDA).
Is detox the same as rehab?
No. NIDA says detox is not treatment by itself and is not enough to help a person recover (NIDA).
Who can help me find a detox program?
The SAMHSA National Helpline is a free, confidential, 24/7 treatment referral and information service (SAMHSA).
About this article
This article is an educational summary written by the Drug Detox and Rehab editorial team. It is not medical advice. The information above was researched from the listed references.