Levels of care
Medical Detox: What Happens, How Long It Takes, and What Comes Next
Detox is the process of getting through withdrawal safely. It's often the first step in treatment, and it's never the last one.
Updated
Medical detox, which clinicians now often call withdrawal management, is supervised care that gets someone through withdrawal safely and as comfortably as possible. It’s the right first step when stopping a substance could be dangerous or unbearable on your own.
It is not treatment for addiction by itself. Detox resets the body; it doesn’t touch the patterns, triggers, and circumstances that drive use. The single most important thing a detox program does is hand you off to what comes next.
Who needs medical detox?
Detox is usually recommended when any of these apply:
- Heavy daily alcohol use, especially with morning shakes or past withdrawal seizures. See the alcohol guide.
- Regular benzodiazepine use at higher doses or combined with other substances. See the benzodiazepine guide.
- Opioid dependence, particularly when the plan is to start buprenorphine in a supervised setting. See the opioid and fentanyl guide.
- Polysubstance use, where withdrawal from one drug can mask or worsen another.
- Serious medical or psychiatric conditions, pregnancy, or a home where staying sober for even a few days isn’t realistic.
People who use stimulants or cannabis alone rarely need medical detox, since those withdrawals aren’t usually physically dangerous. They still benefit from support during the crash and should be assessed for depression and suicide risk.
Inpatient or outpatient detox?
Detox happens on a spectrum. Addiction medicine uses the ASAM Criteria to match intensity to risk:
- Ambulatory detox: you sleep at home and check in daily with a clinic or prescriber. Suitable for mild to moderate withdrawal with good support at home.
- Residential or clinically managed detox: a 24-hour setting with staff monitoring and medication available, but not hospital-level care.
- Medically monitored or hospital detox: round-the-clock nursing and physician oversight, for people at risk of seizures, delirium tremens, or medical complications.
A proper intake assessment decides which fits. If a facility admits everyone to the same level regardless of history, ask why.
How long does withdrawal last?
These are typical ranges, and individuals vary.
| Substance | Symptoms usually start | Worst point | Acute phase lasts |
|---|---|---|---|
| Alcohol | 6 to 24 hours after last drink | Days 1 to 3 | About 5 to 7 days |
| Short-acting opioids and fentanyl | 8 to 24 hours | Days 2 to 3 | About 5 to 10 days |
| Methadone | 1 to 3 days | Days 3 to 8 | Two weeks or more |
| Short-acting benzodiazepines | 1 to 2 days | Varies | Managed by taper over weeks to months |
| Stimulants | Within hours to a day | First few days | Crash lasts days; low mood can persist for weeks |
What happens during a detox stay?
A typical supervised detox follows a predictable arc:
- Assessment. Substance history, vital signs, lab work, mental health screening, and a check for other medical issues.
- Stabilization. Medication on a schedule matched to symptoms: benzodiazepines for alcohol withdrawal, buprenorphine or methadone for opioids, a structured taper for benzodiazepines, plus medicine for nausea, sleep, and blood pressure as needed.
- Monitoring. Staff score withdrawal symptoms several times a day and adjust medication.
- Early engagement. Good programs start counseling, family contact, and discharge planning during detox, not after it.
- Transition. A booked next step: an admission date, an appointment, a prescription bridge.
Most people can bring a phone, basic clothes, and their current prescriptions in original bottles. Policies vary, so ask.
Why is the handoff after detox so important?
Tolerance drops during detox. For opioids in particular, the days after discharge are some of the deadliest in recovery, because a person who returns to their old amount can overdose. For every substance, the craving and stress of early sobriety are still ahead.
That’s why the question to ask any detox before admission is not “how comfortable are your rooms?” but “where do people go when they leave, and who arranges it?” The answer should name real options: residential rehab, a PHP or IOP, or ongoing outpatient care with medication.
How to check a Florida detox program
In Florida, detox (withdrawal management) is a licensed service under Chapter 397 of the Florida Statutes, overseen by the Department of Children and Families. Confirm the facility holds a current license for that specific service, and be skeptical of any detox that offers free travel, free housing, or other perks to get you in the door. Our guide to vetting a Florida rehab or sober home explains why those offers are warning signs.
Common questions
How long does medical detox take?
Typically three to seven days for alcohol and most opioids, longer for methadone, and weeks to months for a benzodiazepine taper. The length depends on the substance, how much and how long someone used, and their health.
Does insurance cover detox?
Most plans do when it's medically necessary. Under the Affordable Care Act, substance use disorder treatment is an essential health benefit, and federal parity law requires comparable coverage to other medical care. Call your insurer to confirm your benefits before admission.
Can I detox at home?
Some people can, with a doctor's supervision, when withdrawal risk is low. People with heavy daily alcohol or benzodiazepine use, past seizures or delirium tremens, or serious health conditions should detox in a supervised setting.
What happens after detox?
Ideally a direct handoff into ongoing treatment: residential care, a day program, or outpatient therapy, plus medication where appropriate. Leaving detox with no next step is one of the highest-risk moments in recovery.
This guide is general information, not medical or legal advice, and Delray Recovery is not a treatment provider. For help finding care, call the SAMHSA National Helpline at 1-800-662-4357. In a crisis, call or text 988, or call 911.