How Long Does Drug Detox Last?

Medically Reviewed:
Dr. Randy Gelow, MD, FASAM
Ray Hamilton, DNP, PMHNP-BC, FNP-C
Last Updated: May 26, 2025

Drug detox typically lasts between 3 and 14 days—but how it’s done can mean the difference between a safe start to recovery and a dangerous medical event. Detox is the body’s process of eliminating drugs and alcohol while managing withdrawal symptoms, which can range from uncomfortable to life-threatening.

The length and intensity of detox depend on factors like the substance used, duration of use, physical health, and whether care is medically supervised. While timelines vary, one thing is consistent: detox isn’t just about getting through withdrawal—it’s about setting the foundation for lasting recovery.

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What Is Drug Detox?

Detox for drug abuse is a medically managed intervention designed to safely stop substance use. It allows the body to rid itself of toxic substances while controlling symptoms of withdrawal. Detox is critical before entering addiction treatment but is not treatment in itself.

Attempting detox without supervision increases the risk of complications or relapse. Clinically guided detox provides a stable foundation for the recovery process ahead.

How Long Does Drug Detox Last?

The duration of detox varies depending on the substances used and individual health factors. Detox typically lasts anywhere from a few days to two weeks.

  • Short-acting drugs (e.g., heroin, alcohol): 3–5 days
  • Long-acting drugs (e.g., methadone, benzodiazepines): 10–14+ days

Withdrawal symptoms may start within hours of the last use and can continue after detox ends. A medically supervised program ensures withdrawal is managed safely and reduces the risk of complications.

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Key Factors That Influence Detox Duration

Several factors can impact how long detox lasts. Understanding these variables helps set realistic expectations and promotes safer treatment.

  • Type of substance(s) used
  • Duration and frequency of use
  • Co-occurring mental health or medical conditions
  • Metabolism, age, and general health
  • Whether detox is done at home or in a facility

Each detox experience is unique. The best outcomes occur when treatment plans are tailored to the individual.

Medically Supervised Detox vs. At-Home Detox

Choosing between at-home detox and medically supervised detox is a critical decision. Safety, complexity of withdrawal, and history of substance use should guide that choice.

  • Detox at home: Often seen as convenient, but risky—especially with severe drug withdrawal.
  • Medically supervised detox: Includes 24/7 monitoring, medication protocols, and emergency medical support.

So, how is a medically induced drug detox treatment administered? Clinicians use medications, fluids, and ongoing evaluations to reduce withdrawal symptoms and prevent life-threatening events. For most, professional detox is not just safer—it’s essential.

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Withdrawal Symptoms by Drug Type

Withdrawal symptoms depend on the drug class and severity of use. They range from uncomfortable to life-threatening.

  • Opioids: Muscle aches, insomnia, nausea, anxiety
  • Alcohol: Hallucinations, tremors, seizures
  • Benzodiazepines: Panic, confusion, rebound insomnia
  • Stimulants: Fatigue, depression, suicidal thoughts

Complications can arise quickly without medical support. Symptoms should always be monitored by trained professionals to ensure safety.

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Drug Detox Timelines by Substance

Detox duration depends heavily on the substance involved. Each drug affects the body differently, which impacts how long it takes to clear the system and stabilize withdrawal symptoms. Understanding these timelines helps set realistic expectations and prepare for the process ahead.

  • Alcohol: 3 to 7 days. Symptoms can begin within 6 hours and peak around 72 hours. Severe cases may include delirium tremens.
  • Opioids (heroin, fentanyl, oxycodone): 4 to 10 days. Symptoms start within 8–24 hours after last use and peak within 72 hours.
  • Benzodiazepines (Xanax, Valium): 10 to 14 days or longer. Tapering is often needed to reduce risk of seizures.
  • Stimulants (cocaine, methamphetamine): 5 to 7 days. Detox is primarily psychological, involving fatigue, depression, and cravings.
  • Cannabis: 5 to 10 days. Symptoms are generally mild and may include irritability, insomnia, and anxiety.

While these are general ranges, the actual detox experience is shaped by individual health, drug use patterns, and access to medical care.

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Will Detox Make You Pass a Drug Test?

Many people assume detoxing means they’ll pass a drug test—but that’s not always the case. A drug detox clears substances from the bloodstream, but traces can remain in hair, urine, or fat cells.

Detox will not guarantee a clean drug screen immediately. Each drug has its own detection window, which varies by the type of test used. Time since last use, hydration, and body composition also affect results. Clinical detox is about health and safety—not passing a test.

How to Detox Your Body from Drugs Safely

The safest way to detox your body from drugs is through a medically supervised setting. Internet remedies and over-the-counter “cleanses” are not reliable and often do more harm than good.

Clinical detox provides symptom-specific medications and constant monitoring.

Supportive care can prevent serious outcomes like seizures, dehydration, or heart complications. Detoxing cold turkey may seem like a fast solution, but it increases relapse risk. Medical guidance protects your body and gives you the best shot at sustained recovery.

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Why Cold Turkey Detox Can Be Dangerous

Quitting drugs or alcohol “cold turkey” might seem like a quick fix—but it can be extremely dangerous, depending on the substance and individual health. Abrupt withdrawal without medical oversight can trigger severe or life-threatening symptoms.

For example, alcohol and benzodiazepines can cause seizures, hallucinations, or cardiac issues when stopped suddenly. Opioids may not be fatal but can lead to extreme dehydration, insomnia, and suicidal ideation. Even seemingly milder substances can carry risk if the body has developed a strong dependence. Cold turkey detox can also increase the chance of relapse due to unmanaged symptoms and lack of support.

If you’re unsure whether medical detox is necessary, err on the side of caution. A professional evaluation can prevent complications and make the process safer and more manageable.

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Medications Used in Medically Supervised Detox

In a medically supervised detox, specific medications are often used to ease withdrawal symptoms and reduce complications. These medications are chosen based on the drug involved and the patient’s overall health status. Used properly, they can make detox not only safer—but more tolerable.

  • Benzodiazepines: Commonly used during alcohol or sedative withdrawal to prevent seizures and reduce anxiety.
  • Buprenorphine (Subutex/Suboxone): Eases opioid withdrawal symptoms and shortens detox duration.
  • Methadone: A long-acting opioid sometimes used for tapering in severe opioid dependence cases.
  • Clonidine or Lofexidine: Non-opioid medications that help reduce symptoms like sweating, agitation, and high blood pressure.
  • Antidepressants or anti-nausea medications: Used on a case-by-case basis to manage secondary symptoms like mood swings or stomach distress.

These medications are never one-size-fits-all. They’re part of a broader detox protocol designed by clinicians to match your specific needs, ensuring a safer and more comfortable experience.

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Supporting a Loved One Through Detox

Family members are often unsure how to support someone going through detox. Your support can be pivotal during this stage of recovery.

  • Learn about the detox process and potential complications.
  • Avoid judgment or unrealistic pressure—detox is not a quick fix.
  • Encourage entry into full addiction treatment, not just detox.
  • Attend support groups to learn how to provide long-term support.

Compassion and education go a long way. Supportive environments improve outcomes and help your loved one feel less alone.

What Comes After Detox?

Detox is the first step, not the finish line. Once stabilized, individuals need long-term treatment to address the root of addiction.

This may involve residential care, therapy, peer support, and medication-assisted treatment. Without this follow-up, relapse is extremely likely. Post-detox care focuses on behavioral change, emotional healing, and developing coping tools.

Detox treats the body—treatment heals the whole person. Sustainable recovery begins after detox ends.

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Warning Signs You Need Medically Supervised Detox

There are clear signs that professional detox is the safer route. In many cases, it can be the difference between life and death.

  • History of relapse after quitting drugs
  • Severe withdrawal symptoms in past attempts
  • Co-occurring psychiatric or medical conditions
  • Use of multiple substances at once
  • Risk of seizures, hallucinations, or other complications

At The Hope House, we provide medically supervised detox in Arizona tailored to individual needs. Every treatment plan is built with long-term recovery in mind.

Find Safe and Effective Drug Detox Treatment in Arizona

Understanding how long drug detox lasts can ease anxiety and clear up misconceptions. While detox may take anywhere from a few days to several weeks depending on individual and clinical factors, choosing medically supervised care is the safest and most effective way to navigate withdrawal.

Professional support provides structure, comfort, and crucial preparation for long-term recovery success. If you or a loved one are ready to begin detox or want to learn more about safe options, don’t hesitate to reach out.

Call The Hope House today at (480) 448-6142 or email us at contact@thehopehouse.com — expert help is just a phone call or message away.

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