How Drug Detox Works with Medication-Assisted Treatment

Medically Reviewed:
Dr. Michael Vines, MD
Ray Hamilton, DNP, PMHNP-BC, FNP-C
Last Updated: April 7, 2025

Recovering from drug and alcohol addiction is a complex process. One of the first and most crucial steps is detoxification, or detox. This is when the body clears itself of harmful substances.  However, detox can cause intense withdrawal symptoms, which may become life-threatening without proper medical support. That’s where medication-assisted treatment (MAT) comes in.

MAT combines medications with counseling and behavioral therapy to help people manage withdrawal and cravings. It’s one of the most effective treatment options available for certain substance use disorders, especially opioid addiction and alcohol dependency.

In this article, we’ll break down how drug detox works in combination with medication-assisted treatment.

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What is Medication-Assisted Treatment (MAT)?

Medication-assisted treatment is an evidence-based approach used to treat drug addiction. It’s most commonly used for opioid and alcohol withdrawal. MAT uses FDA-approved medications that interact with the brain’s central nervous system to reduce withdrawal symptoms and prevent relapse.

Key Features of Medication-Assisted Treatment

  • Combination of Medication and Therapy: MAT uses medications alongside behavioral therapies such as cognitive behavioral therapy (CBT) to manage withdrawal symptoms, reduce cravings, block the euphoric effects of opioids, and support psychological and emotional recovery.
  • Whole-Person Approach: It addresses not only the physical aspects of addiction but also mental health, social, vocational, and legal issues through comprehensive care, including counseling and support services.
  • Treatment, Not Substitution: Although some MAT medications are opioids themselves, when taken as prescribed, they do not produce a “high”. Instead, they help restore normal brain function, reduce illicit opioid use, and improve social functioning without substituting one addiction for another.

The goal is to provide a comprehensive treatment program that treats the whole person, not just the physical symptoms.

MAT is suitable for individuals with opioid or other substance use disorders who may struggle with abstinence-only approaches. It is often part of a broader treatment plan tailored to the individual’s needs and can include medical detox, rehabilitative phases, and long-term maintenance.

How Drug Detox Works by Drugs and Substances

Detox works differently depending on the substance involved. Each drug affects the brain and body in its own way. Therefore, withdrawal can vary widely in terms of severity, timeline, and risks. Because of these risks, many people choose to detox at treatment centers under medical supervision rather than attempting detox at home.

Alcohol

Alcohol detox typically lasts about 3 to 7 days, with symptoms starting within 6-12 hours after the last drink. Withdrawal from alcohol can begin within 24 hours after the last drink.

Common withdrawal symptoms include anxiety, sweating, tremors, nausea, and insomnia. Severe cases may involve seizures or delirium tremens (DTs), which can be life-threatening.

Opioids

Opioid withdrawal can start 6–12 hours after the last dose. Symptoms include muscle aches, anxiety, diarrhea, vomiting, and high blood pressure. While not usually fatal, opioid withdrawal can be extremely uncomfortable.

Opioid detox duration varies but often lasts about a week, with longer-term treatment recommended to prevent relapse.

Benzodiazepines

Withdrawal from benzos can also be dangerous. Symptoms may appear within 1–4 days and include panic attacks, seizures, and hallucinations. The detox timeline depends on the type of benzodiazepine (short-acting vs. long-acting), dosage, length of use, physical health, and psychological factors.

Stimulants

Stimulant detox involves allowing the body to metabolize and clear the drug, typically taking 1-2 weeks for acute withdrawal. Common withdrawal symptoms include fatigue, depression, muscle aches, and vivid nightmares.

Detox focuses on managing these symptoms safely, often in specialized centers, but does not involve substitution medications like opioids. Post-acute withdrawal symptoms can last 1-2 months.

Marijuana

Marijuana detox usually lasts 2-3 weeks or longer. Withdrawal symptoms begin 1-2 days after cessation, peaking within the first week. Symptoms include irritability, anxiety, sleep disturbances, decreased appetite, and restlessness.

Supportive care and inpatient detox may reduce relapse risk.

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What Drugs Are Used for Alcohol Detox?

Alcohol dependency alters brain chemistry. When a person stops drinking, the central nervous system becomes overstimulated, causing withdrawal symptoms. Medications help ease withdrawal symptoms and prevent complications.

1. Benzodiazepines

These drugs calm the nervous system and are commonly used during alcohol detox. Long-acting options like diazepam or chlordiazepoxide are preferred because they offer steady symptom control.

They help reduce the risk of seizures and manage anxiety, agitation, and insomnia.

2. Anticonvulsants

Drugs like carbamazepine or gabapentin are sometimes used as alternatives to benzos. They stabilize electrical activity in the brain and are less addictive.

3. Clonidine

Clonidine reduces activity in the sympathetic nervous system. It helps control elevated blood pressure, sweating, and a rapid heartbeat during withdrawal.

These medications are usually part of a detox program in a medical setting. The exact treatment plan depends on the severity of the person’s alcohol dependency and their overall health.

Drugs Used in Opioid Detox

Opioid detox is a challenging but critical step in recovery. Medications are used to reduce cravings, manage symptoms, and stabilize brain function.

1. Methadone

This is a long-acting opioid agonist. It binds to opioid receptors in the brain but doesn’t cause the same intense high. Methadone helps prevent withdrawal while reducing the urge to use illicit opioids.

It’s typically administered in licensed treatment centers and is especially useful for those with severe addiction.

2. Buprenorphine

Buprenorphine is a partial opioid agonist. It activates the brain’s opioid receptors, but to a much lesser degree. It’s effective at relieving withdrawal symptoms and reducing cravings.

Often combined with naloxone (an opioid antagonist), this combo is marketed as Suboxone. The naloxone prevents misuse by triggering withdrawal if injected.

3. Naltrexone

This is an opioid antagonist used after detox is complete. It blocks the effects of opioids entirely. Naltrexone helps prevent relapse but is not used to manage withdrawal symptoms.

4. Clonidine

Just like in alcohol detox, clonidine can also be used here. It doesn’t treat cravings but helps control blood pressure, anxiety, and other physical symptoms.

Medications to treat specific symptoms such as nausea, vomiting, diarrhea, and insomnia may be used alongside the above drugs to improve patient comfort during detox. The medications used depend on the patient’s drug history, tolerance, and specific needs. A personalized treatment plan is essential for success.

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Benefits of Medication-Assisted Treatment in Detox

Using MAT in detox offers several advantages, especially when part of a structured treatment program:

  • Eases Withdrawal Symptoms: Medications help stabilize the central nervous system and reduce discomfort. This lowers the risk of complications and life-threatening symptoms.
  • Reduces Cravings: Medications like buprenorphine and methadone help regulate the brain’s reward system. This reduces the urge to relapse during early recovery.
  • Increases Safety: With 24/7 medical monitoring in treatment centers, patients receive immediate help if symptoms worsen.
  • Improves Retention in Treatment: People are more likely to stay in their treatment program when symptoms are manageable. This improves long-term recovery outcomes.
  • Supports Mental Health: Many people struggling with addiction also suffer from anxiety or depression. MAT helps stabilize mood and supports addiction treatment more broadly.
  • Enhances Overall Quality of Life: MAT helps people regain physical and mental health by stabilizing brain chemistry and reducing withdrawal distress.

Risks and Considerations of MAT

While MAT is a safe and effective tool, it must be used responsibly. Some medications may cause potential side effects such as drowsiness, dizziness, or mood changes. However, these are usually mild and manageable.

Some medications, such as benzos and methadone, have potential for abuse. This highlights the importance of proper prescription and monitoring by healthcare professionals.

Why Detox at Home Can Be Risky

While some people try to detox at home, this can be dangerous. Without medical support, withdrawal symptoms can become severe or even life-threatening. People with alcohol dependency or opioid addiction are especially at risk.

MAT isn’t available at home unless prescribed and monitored. Trying to quit cold turkey may lead to relapse or complications. For most, a structured, medically supervised setting is the safest and most effective path.

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Drug and Alcohol Detox

Finding the right detox program is key to starting recovery off strong. Here are a few tips:

  • Look for licensed treatment centers with 24/7 medical staff.
  • Ask about MAT options for alcohol or opioid detox.
  • Make sure the program offers behavioral therapy and counseling.
  • Ensure the center can create a personalized treatment plan.

Detox is just the beginning. A full addiction treatment approach includes continued care, therapy, and community support.

If you or a loved one is struggling with drug addiction, don’t wait. Help is available. Our Scottsdale rehab and addiction treatment centers provide comprehensive care for those seeking help. Our team of experienced addiction specialists is here to guide you through personalized treatment options that fit your unique needs.

Reach out to us today and take the first step toward lasting recovery.

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