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Cover image: Illustrative stock photograph; not actual Studio City Recovery people or facilities.
Detox comes before rehab when stopping the substance carries medical risk. That depends almost entirely on which substance is involved. Alcohol and benzodiazepines can produce dangerous withdrawal, while stimulant withdrawal is difficult but not usually medically hazardous.
Which Substances Require Medical Detox?
Withdrawal risk sorts substances into 3 tiers.
- Medically supervised detox required: alcohol and benzodiazepines, where withdrawal can cause seizures.
- Supervised detox strongly advised: opioids, where withdrawal is rarely fatal but severe enough to drive relapse.
- Supportive monitoring usually sufficient: stimulants and cannabis, where the crash is psychological.
Why Alcohol Is the One People Underestimate
It is legal and familiar, so the medical risk is easy to dismiss. Withdrawal can escalate to seizures and delirium tremens within 72 hours, and the stages are described in what are the stages of alcohol withdrawal and recovery.
How Does the Assessment Decide?
A clinical assessment determines the answer before admission. Five factors drive it.
- Substance, daily amount, and how long use has continued.
- Time since the last use.
- History of prior withdrawal, especially seizures or delirium tremens.
- Co-occurring medical conditions.
- Concurrent use of more than one substance.
Why Does Prior Withdrawal History Matter So Much?
Each unsupervised withdrawal episode tends to make the next one more severe, a pattern clinicians call kindling. Someone who has detoxed at home three times is at higher risk than the number of drinks alone suggests.
How Long Does Detox Take?
Duration varies by substance and is measured in days rather than weeks.
- Alcohol: 3 to 7 days, with peak risk in the first 72 hours.
- Benzodiazepines: 1 to 2 weeks or longer with a taper.
- Opioids: 4 to 7 days for short-acting, longer for methadone.
- Stimulants: 3 to 5 days for the acute crash.
Why Benzodiazepines Take Longest
Tapering is the safe route and tapers are measured in weeks, not days. The stages are covered in benzodiazepine withdrawal and what to expect.
Can You Detox at Home?
Home detox is dangerous for alcohol and benzodiazepines and should not be attempted. For other substances it is survivable but has a low completion rate, because the hardest days arrive with no support in place. Four conditions make supervised detox necessary rather than preferable.
- Daily alcohol use, particularly morning drinking.
- Any benzodiazepine dependence.
- Prior withdrawal seizure.
- Use of multiple substances at once.
What Does Supervised Detox Actually Involve?
Medical detox is monitoring plus symptom management, not simply a locked room. Five elements are standard.
- Vital sign checks on a set schedule, more often during peak risk.
- Withdrawal severity scored with a validated scale.
- Medication to prevent seizures and manage symptoms.
- Hydration and electrolyte correction.
- Assessment for co-occurring medical and psychiatric conditions.
Scoring separates supervision from observation, since it triggers treatment before symptoms escalate.
What Happens After Detox?
Detox clears the substance. It does not treat why use started, which is why detox alone has a high return-to-use rate.
What Comes Next
What the process involves is detailed in everything you need to know about detox in rehab, and the residential program that follows is outlined on our inpatient treatment page.
Frequently Asked Questions
Can you skip detox and go straight to rehab?
Only when the assessment finds no withdrawal risk. Programs that admit without screening for it are taking a risk with your safety rather than saving you a step.
Is detox painful?
Medically supervised detox uses medication to manage symptoms, so it is far more tolerable than unsupervised withdrawal. Discomfort is expected, but dangerous symptoms are treated as they appear.
Does insurance cover detox separately?
Usually yes. Detox is authorized as its own level of care, with rehab authorized afterward, which is why verification should cover both.
Can you detox and then go home?
You can, and outcomes are poor. Detox addresses physical dependence only, and returning to the same environment without a treatment plan is the most common route back to use.
What if you have already stopped using?
Tell the assessment team when you last used. Withdrawal can begin days after the last dose with some substances, and stopping recently changes the plan rather than removing the need for it.
