Anxiety and Panic Attacks in Alcohol and Drug Withdrawal: Why They Happen, How Long They Last, and When Panic Is Something Else

Anxiety is often the first thing people feel when they stop drinking, and for some it turns into full panic attacks. That can be frightening enough to send a person back to the bottle within a day. This page explains why withdrawal causes anxiety, how long it usually lasts, and how to tell a panic attack from something more dangerous. It also covers what helps, what makes it worse, and how to know whether the anxiety will lift with sobriety or needs its own treatment. Every figure comes from the medical sources named under each section.

Anxiety after you stop drinking usually peaks in the first three days and is back to normal for most people within about two weeks. It keeps easing with each week of sobriety after that.

The National Library of Medicine puts the start of alcohol withdrawal within about 8 hours of the last drink. Anxiety and nervousness are among the first symptoms. They peak, with the rest of withdrawal, at 24 to 72 hours.

A study of 171 men in inpatient treatment tracked anxiety three times a week. At admission, 40 percent had high levels of anxiety. By the second week, scores were typically back in the normal range. They kept falling with each week of abstinence. The men with the most anxiety were those who had a history of panic attacks or anxiety before they drank heavily.

Some anxiety and poor sleep can last longer. The National Library of Medicine says sleep changes, mood swings and fatigue may go on for months. The post-acute withdrawal page covers that stretch, and the alcohol withdrawal timeline sets out the first week hour by hour.

Source: Alcohol withdrawal, MedlinePlus Medical Encyclopedia, National Library of Medicine, reviewed January 1, 2025; Changes in anxiety among abstinent male alcoholics, Brown, Irwin and Schuckit, Journal of Studies on Alcohol, 1991.

What helps most with withdrawal anxiety is treating the withdrawal itself. In medical detox, the same medicine that prevents seizures also calms the nervous system, so the anxiety eases as the withdrawal is controlled.

Medical detox for alcohol uses a benzodiazepine on a set schedule, or in doses matched to a withdrawal score. Anxiety is one of the items on that score. The CIWA-Ar scale page shows how it is measured. As the score comes down, so does the dose.

Simple things help too. A quiet, dim room. Regular meals and water. Slow breathing during a panic attack, while reminding yourself that it will peak and pass. Someone nearby who knows what is happening. None of this replaces medical care in withdrawal, but it makes the hours easier.

What does not help is a drink “to take the edge off”. It works for an hour and restarts the clock.

Yes, in most cases. Opioid withdrawal brings anxiety and agitation in its first wave. Cocaine and meth withdrawal bring anxiety along with a deep low in mood. Benzodiazepine withdrawal can bring the strongest rebound anxiety of all.

The National Library of Medicine lists agitation and anxiety among the early symptoms of opioid withdrawal, starting within about 12 hours of the last heroin use. For cocaine, it lists anxiety, irritability and sometimes extreme suspicion during the crash. For benzodiazepines, the FDA describes withdrawal anxiety that can, in some people, go on for months.

The worst drug to detox from page compares how dangerous each withdrawal is. The short version: anxiety alone is rarely the dangerous part, but it is often what drives people back to using.

Source: Opiate and opioid withdrawal and Cocaine withdrawal, MedlinePlus Medical Encyclopedia, National Library of Medicine.

Briarwood treats withdrawal anxiety as part of the withdrawal, with medication on a physician’s schedule and nursing around the clock. Anxiety that was there before the drinking is assessed and planned for before discharge.

Medically supervised alcohol detox runs in Austin and Houston, usually for five to seven days. The first days, when anxiety and the risk of seizures both peak, are spent under observation. Benzodiazepine detox uses a slow taper for the same reason.

Briarwood is a detox center, not a hospital. Someone who is confused, feverish or seizing needs an emergency room first. San Antonio is an outpatient program and is not the setting for withdrawal at that level.

The step after detox is arranged before discharge, and so is care for anxiety that does not lift. Cost and insurance covers what a stay costs. Admissions answers at every hour, and if you are calling in the middle of a panic attack, that is fine too.