If you are asking what is withdrawal, the short answer is that it is the body’s reaction to losing a substance it has adapted to. This page is informational only and is not medical advice. Some forms of withdrawal can be life-threatening, so always talk with a qualified medical provider before stopping any substance.
Why Does Withdrawal Happen?
When someone uses alcohol or certain drugs regularly, the brain and body adapt to the substance’s constant presence—a state called physical dependence. When the substance is removed, the nervous system is temporarily thrown out of balance, producing withdrawal symptoms. According to the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA), supervised detoxification exists specifically to manage these symptoms safely. You can read SAMHSA’s clinical guidance in TIP 45: Physical Detoxification Services for Withdrawal From Specific Substances.
What Are the Main Types of Withdrawal?
Withdrawal looks different depending on the substance involved. Three of the most common—and most important to understand—are alcohol, benzodiazepine, and opioid withdrawal.
| Substance | Common symptoms | Key risk |
|---|---|---|
| Alcohol | Anxiety, tremors (“shakes”), sweating, nausea, rapid heartbeat, confusion | Seizures and delirium tremens (DTs) can be life-threatening |
| Benzodiazepines | Anxiety, insomnia, irritability, dizziness, muscle tension, panic | Seizures; symptoms can be prolonged and dangerous |
| Opioids | Muscle aches, sweating, runny nose, nausea, vomiting, diarrhea, cravings | Rarely fatal directly, but dehydration and relapse-overdose risk are serious |
Alcohol and benzodiazepine withdrawal can be medically dangerous and may require medically supervised detox. Stopping these substances abruptly without medical support can trigger seizures or, in the case of alcohol, delirium tremens. Opioid withdrawal is rarely fatal on its own but is intensely uncomfortable and carries a high risk of relapse and overdose, which is why medical guidance matters.
How Long Does Withdrawal Last?
Timelines vary by substance, dose, and individual health. A general pattern looks like this:
- Alcohol: symptoms often begin 6–24 hours after the last drink, peak around 24–72 hours, and ease within about a week.
- Benzodiazepines: onset depends on the specific drug; symptoms can last from one to several weeks and sometimes longer.
- Opioids: short-acting opioids may cause symptoms within 8–24 hours that peak in 1–3 days; longer-acting opioids start later.
Some people also experience protracted withdrawal—lingering symptoms such as sleep problems, anxiety, or low mood that can persist for weeks or months as the brain heals.
How Does DMHBH Support People Through Withdrawal?
DeSoto Memorial Hospital Behavioral Health (DMHBH) provides outpatient mental health and substance use care, including an intensive outpatient program (IOP). We do not provide medically managed or inpatient detox. When someone needs medical detox—especially for alcohol or benzodiazepines—we refer out to an appropriate medical facility and then support recovery afterward.
- For substance-specific information, see our pages on alcohol addiction, benzodiazepine addiction, and opioid addiction.
- Learn how medical detox works in our glossary entry on detox, and how medication supports opioid recovery under medication-assisted treatment (MAT).
- If a mental health condition occurs alongside substance use, our co-occurring disorders program offers integrated outpatient support.
Frequently Asked Questions About Withdrawal
Is withdrawal dangerous?
It can be. Alcohol and benzodiazepine withdrawal in particular may cause seizures or, with alcohol, delirium tremens, which can be life-threatening. Always talk with a qualified medical provider before stopping a substance.
Can I go through withdrawal at home?
Some mild cases may be managed with medical guidance, but attempting withdrawal alone can be risky, especially with alcohol or benzodiazepines. A medical evaluation helps determine the safest setting.
How long do withdrawal symptoms last?
Most acute symptoms ease within several days to a couple of weeks, though some people experience protracted symptoms such as sleep and mood changes for weeks or months.
Does DMHBH provide detox?
No. DMHBH offers outpatient mental health and substance use care, including IOP. We refer out for medically managed detox and support recovery afterward.
What is the difference between withdrawal and detox?
Withdrawal is the set of symptoms the body experiences; detox is the supervised process of safely clearing the substance while managing those symptoms.