How Long Does Detox Take? Timelines by Substance

Quick answer: Detox usually takes several days to about a week for the acute phase, but it depends on the substance. Alcohol withdrawal often eases within about 5 to 7 days, short-acting opioids within about a week, and stimulant crashes within one to two weeks, while benzodiazepine tapers can take weeks or months. Sleep, mood and cravings can take longer to settle.

If you or someone you love is thinking about stopping, one of the first questions is how long it will take. The honest answer is that it varies, but knowing the typical timelines helps you plan time off, arrange support and choose the right level of care.

Key takeaways

• Acute withdrawal from most substances lasts several days to about two weeks.
• Alcohol and benzodiazepine withdrawal can be dangerous and should be medically supervised.
• Benzodiazepines are usually tapered slowly, so detox can take weeks or longer.
• The substance, dose, length of use and your health all affect the timeline.
• Detox is only the first step; ongoing treatment is what prevents relapse.

What is detox?

Detox, short for detoxification, is the process of clearing a substance from the body while managing withdrawal symptoms. Medical detox adds a clinical team, medication when needed and round-the-clock monitoring to keep the process safe and as comfortable as possible. It treats the physical side of dependence, which is why it is usually followed by therapy and other treatment.

How long does detox take for each substance?

These are typical ranges for the acute phase. Your own timeline may be shorter or longer.

After the acute phase, many people notice lingering symptoms such as poor sleep, low mood, irritability and cravings for weeks or months. This is often called post-acute withdrawal, and it is a normal part of early recovery.

How long does alcohol detox take?

Alcohol withdrawal usually begins within a day of the last drink and peaks over the next one to three days. Most people feel physically better within about a week. The biggest risks, seizures and delirium tremens, are most likely in the first few days, which is why daily heavy drinkers should detox under medical care. Our alcohol withdrawal timeline walks through what to expect hour by hour.

How long does opioid detox take?

With short-acting opioids such as heroin, oxycodone or fentanyl, symptoms often begin within a day and peak in one to three days, easing over about a week. Long-acting opioids such as methadone produce a slower, longer withdrawal. Opioid withdrawal is rarely life-threatening, but it is often intense enough that people return to use just to stop the discomfort. Medications such as buprenorphine can ease symptoms and are often continued as part of ongoing treatment; our guide to MAT myths vs. facts explains how this works.

How long does benzodiazepine detox take?

Benzodiazepines such as Xanax, Ativan, Klonopin and Valium should never be stopped suddenly after regular use, because withdrawal can cause seizures. Instead, a clinician usually lowers the dose gradually. Because the taper is slow and tailored to each person, benzodiazepine detox can take weeks or even months. Shorter-acting benzodiazepines tend to cause symptoms sooner than longer-acting ones.

How long does stimulant detox take?

Stimulant withdrawal from cocaine or methamphetamine is mainly psychological. The first days often bring a crash with exhaustion, heavy sleep, increased appetite and low mood. Most acute symptoms ease within one to two weeks, but cravings and mood changes can linger. Monitoring for depression and thoughts of self-harm is an important part of stimulant detox.

What affects how long detox takes?

• The substance: each one leaves the body and affects the brain differently.
• Dose and length of use: heavier and longer use usually means a longer, harder withdrawal.
• Using more than one substance: combinations make withdrawal less predictable.
• Physical health: liver function, age and other conditions all play a role.
• Mental health: anxiety, depression or trauma can make withdrawal feel more intense.
• Past withdrawals: repeated withdrawal from alcohol can make later episodes more severe.

What happens after detox?

Detox treats withdrawal, not addiction itself. Most people move straight into residential or outpatient treatment, where therapy addresses the reasons behind substance use and builds skills for staying well. Our guides to inpatient vs. outpatient rehab and your first week in rehab explain what comes next.

How can you prepare for detox?

A little planning makes the first days smoother and lowers stress.

• Arrange time off. Plan for at least a week away from work and other responsibilities, and longer if residential treatment follows.
• Be honest about what you use. Tell the medical team every substance, dose and medication, including prescriptions and supplements.
• Tell one trusted person. Someone who knows your plan can help with practical tasks and check in on you.
• Pack simply. Bring ID, your insurance card, current medications in their original containers and comfortable clothes.
• Plan the next step. Ask how detox connects to ongoing treatment so there is no gap in care.

What does a typical day in medical detox look like?

Days in detox are quiet and focused on safety and rest. Nurses check vital signs such as blood pressure, heart rate and temperature several times a day and ask about symptoms using standard scoring tools. Medications are given as needed to ease discomfort and prevent complications. Meals, fluids and sleep are a priority, because withdrawal takes a lot out of the body. As you start to feel better, short check-ins with a counselor or therapist begin, and many people join a group session or two before moving into the next stage of treatment. Nobody expects you to do intensive therapy while you are still feeling unwell.

When should you get help right away?

Call 911 for a seizure, confusion, hallucinations, chest pain, a very fast heartbeat or signs of an opioid overdose such as slow breathing or unresponsiveness. Call or text 988 for thoughts of suicide. If you drink heavily every day or take benzodiazepines regularly, talk to a doctor before stopping.

Medical detox at Regal Treatment

Regal Treatment offers medically supervised alcohol detox and drug detox in Los Angeles, with 24/7 nursing care and a smooth transition into residential treatment. Learn more about how medical detox works, or call (818) 533-9993 or contact us to talk confidentially.

Frequently asked questions

What is the fastest way to detox? There is no safe shortcut. Rapid or at-home detox methods can be dangerous, especially for alcohol and benzodiazepines. Medical detox is the safest way to get through withdrawal.

Can I work during detox? Most people need time off during the acute phase. Planning ahead and talking to your employer or HR about leave options can help.

How long do cravings last after detox? Cravings can come and go for months. They usually become less frequent and less intense with treatment, support and time.

Is a 3-day detox enough? Sometimes for mild withdrawal, but many people need closer to a week, and benzodiazepine tapers take longer. A clinical assessment determines the right length.

Does insurance cover detox? Most plans cover medically necessary detox. Coverage varies, so verify your benefits first.

Can detox be done at home? For mild withdrawal under a doctor's guidance, sometimes. For heavy daily drinking or benzodiazepine or opioid dependence, medically supervised detox is much safer.

Sources

• Treatment and Recovery, National Institute on Drug Abuse
• National Helpline, Substance Abuse and Mental Health Services Administration

This article is for general information and does not replace medical advice. In an emergency, call 911.