Briarwood Detox Center

Guide

What is the Worst Drug to Detox From?

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Written by

Anna-Grace Washington

Medical Content Writer

Medically reviewed by

Dr. William J. McCreight III, MD

Medical Director, 2019–2024

Published April 29, 2019

Reviewed and updated July 27, 2026

Table of contents

Withdrawal symptoms are one of the most common concerns among people who want to quit their drug of choice. Just the thought of detox being painful or uncomfortable can be enough to make many people forego sobriety and keep using drugs or alcohol to prevent withdrawal symptoms.

Fortunately, there is a solution to this problem. Medical detox treatment is designed to help people comfortably reach a state of sobriety by managing uncomfortable withdrawal symptoms that could otherwise be dangerous or life-threatening. Additionally, withdrawal is usually a short process, and any lingering symptoms can usually be treated with holistic methods or non-addictive medications.

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Once a person has successfully completed the detox and withdrawal process, he or she can officially begin living a sober lifestyle on the other side of addiction.

Drug Withdrawal Symptoms: What You Need to Know

Withdrawal is a sure sign of addiction and a clear indication that a person is physically and psychologically dependent on a particular substance. Every person’s experience with withdrawal is different, but certain drugs produce similar withdrawal symptoms. While some types of drug withdrawal may make a person feel like they have the flu, other drugs may cause additional serious or life-threatening withdrawal symptoms like seizures, psychosis, or heart attacks.

Depending on the person, the type of substance they are addicted to, and several other factors, the severity of withdrawal symptoms will vary. More severe withdrawal symptoms are typically associated with quitting drugs or alcohol cold turkey, but a medically-monitored tapering method is most likely to produce less severe symptoms.

Top 4 Worst Drugs to Detox From

As mentioned above, the withdrawal and detox experience is highly individualized, but there are certain substances that are known to produce particularly uncomfortable withdrawal symptoms. Although there may not be one single drug that is the worst to detox from, here are some of the most difficult drug addictions and withdrawal syndromes to overcome.

1. Alcohol

Alcohol withdrawal produces a number of uncomfortable symptoms, including:

  • Nausea
  • Vomiting
  • Rapid heart rate
  • Tremors
  • Insomnia
  • Headache
  • Loss of appetite

More severe withdrawal symptoms can include seizures or hallucinations. About five percent of people who experience alcohol withdrawal will also suffer from something called delirium tremens (DTs) which is the most severe form of alcohol withdrawal. DTs typically occurs 48 to 72 hours after the person’s last drink and can include symptoms like:

  • Fever
  • Delusions
  • Vivid hallucinations
  • Racing heart
  • High blood pressure
  • Excessive sweating
  • Seizures1

Delirium tremens is very dangerous and should always be treated by medical professionals. Although many people may try to detox from alcohol at home, this method is rarely successful and it’s always safest to complete alcohol detox in a medically-monitored environment.

Ready to talk to someone now? Briarwood Detox Center's admissions team is here 24/7, and every call is confidential. Call (866) 710-7710.

2. Benzodiazepines

Benzodiazepines are central nervous system depressants and prescription medications for anxiety and panic disorders. Commonly abused benzodiazepines include Valium, Ativan, Klonopin, and Xanax. These drugs have a high potential for abuse and addiction, especially when they are used for an extended period of time or misused. Benzodiazepine withdrawal can range from slightly uncomfortable to severely life-threatening, depending on the dosage the person was taking and how abruptly they tried to stop. Common benzodiazepine withdrawal symptoms include:

  • Tremors
  • Anxiety
  • Headaches
  • Insomnia
  • Panic
  • Sweating
  • Nausea
  • High blood pressure
  • Heart palpitations
  • Muscle pain
  • Problems concentrating
  • Distorted senses2

Quitting benzodiazepines cold turkey can be extremely dangerous and may produce some severe physical and psychological withdrawal symptoms like seizures and psychosis. Some people may also experience post-acute withdrawal, which is characterized by long-lasting symptoms that may take weeks or months to subside. Symptoms of post-acute withdrawal typically include:

  • Insomnia
  • Severe anxiety
  • Depression3

Due to the intensity of the psychological symptoms associated with withdrawal, benzodiazepine detox is safer, more comfortable, and more effective when it is completed in a medical environment.

3. Heroin

Heroin is a highly addictive substance and one of the most commonly abused drugs in the U.S. Heroin withdrawal, also known as “dope sickness,” can produce some very uncomfortable physical and psychological side effects, such as:

  • Muscle aches
  • Anxiety
  • Insomnia
  • Nausea
  • Vomiting
  • Diarrhea
  • Dilated pupils
  • Sweating
  • Yawning
  • Stomach cramps
  • Agitation4

The severity of heroin withdrawal will vary depending on the average dose, the method of use, and the potency and frequency of use. However, it is often so severe that it seriously limits a person’s ability to function normally. Many people who try to quit end up using heroin again just to experience relief from the discomfort of withdrawal. For this reason, unassisted heroin detox is rarely successful.

4. Crystal Meth

Crystal meth is another highly addictive drug, and withdrawal, although manageable initially, can actually become more difficult down the road. What makes crystal meth withdrawal so challenging is that intense cravings for the drug can suddenly pop up out of nowhere up to six months after completing meth detox, making it extremely difficult to sustain long-term sobriety. However, the severity of meth withdrawal symptoms should not be underestimated either. They commonly include:

  • Anxiety
  • Paranoia
  • Hallucinations
  • Anhedonia (inability to feel pleasure)
  • Fatigue
  • Sleepiness
  • Strong cravings for meth
  • Strong cravings for sugary or starchy foods
  • Depression
  • Psychosis5

Treating Drug Withdrawal Symptoms

Withdrawaling from these drugs on your own can be very difficult and dangerous, but a medical detox program can ensure your comfort and safety throughout the entire process. Although quitting cold turkey is tempting, treating withdrawal is a complex and highly individualized process that is best completed by medical professionals.

If you are addicted to one of the drugs listed above, there’s no reason to fear detox or withdrawal. The medical professionals at Briarwood Detox Center are ready to help you comfortably achieve a stable state of sobriety so you can start your treatment journey. Call today to learn more about our detox programs.

References:

  1. MedlinePlus
  2. NIH
  3. https://www.psychologytoday.com/us/blog/some-assembly-required/201505/detoxing-after-detox-the-perils-post-acute-withdrawal
  4. MedlinePlus
  5. https://www.verywellmind.com/what-to-expect-from-meth-withdrawal-22358

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Is There a Safe Dose of LSD? Understanding the Risks

Direct answer: There is no medically safe or recommended dose of LSD. Because LSD is an illegal Schedule I controlled substance with no accepted medical use, any amount carries unpredictable psychological and physical risks. Users face acute dangers including severe anxiety, paranoia, psychosis, dangerous behavior, and potential long-term mental health consequences regardless of dose.

Street LSD potency varies wildly—tabs, blotter paper, or liquid forms contain inconsistent concentrations that make dosing inherently dangerous. What one person tolerates, another may experience as a medical or psychiatric emergency. The drug's effects on serotonin receptors can trigger lasting psychological harm, especially in individuals with undiagnosed mental health conditions.

Why Any LSD Use Is Risky

  • Unpredictable purity: Street LSD is often adulterated with unknown substances, amplifying toxicity and overdose risk.
  • Mental health impact: Even a single use can precipitate lasting anxiety disorders, depression, PTSD, or hallucinogen persisting perception disorder (HPPD).
  • No overdose antidote: Unlike opioids, there is no reversal agent for LSD toxicity; treatment is supportive only.
  • Legal and social consequences: Possession and use carry criminal penalties and can derail education, employment, and relationships.

When to Seek Help

If you or a loved one is using LSD or other hallucinogens regularly, or experiencing psychological distress, anxiety, or cravings after use, professional detox and behavioral health support are essential. At Briarwood Detox Center, our medically supervised detox programs in Austin, San Antonio, Houston, and Colorado Springs provide safe withdrawal management, psychiatric stabilization, and evidence-based care tailored to hallucinogen and polysubstance use.

Our board-certified addiction specialists treat the whole person—addressing co-occurring mental health disorders, trauma, and the underlying drivers of substance use—so you can build a foundation for lasting recovery.

Confidential help is available 24/7. Call (866) 710-7710 to speak with an admissions specialist and start your recovery journey today.

Is there a safe amount of LSD to take?

No. There is no medically recognized safe dose of LSD. The drug is illegal, unregulated, and carries unpredictable risks at any dose, including severe psychological reactions, dangerous behavior, and long-term mental health harm.

What are the risks of taking LSD even once?

A single LSD experience can trigger acute panic, psychosis, self-harm, accidents, or lasting conditions like HPPD (flashbacks), anxiety disorders, and depression. Street LSD's unknown purity increases overdose and poisoning risk.

Can you become addicted to LSD?

While LSD does not cause physical dependence like opioids or alcohol, psychological dependence and compulsive use patterns can develop. Many users also engage in polysubstance use, complicating treatment needs.

Where can I get help for hallucinogen use in Texas?

Briarwood Detox Center offers medically supervised detox and psychiatric care for hallucinogen and polysubstance use in Austin, San Antonio, and Houston, TX, plus Colorado Springs, CO. Call (866) 710-7710 for confidential, 24/7 support.

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