Alcohol withdrawal symptoms typically begin within 6 to 24 hours after your last drink, peak between 24 and 72 hours, and improve within about five days. That’s the general arc for most people with mild to moderate withdrawal. But the full picture depends on which symptoms show up, how heavily you were drinking, and whether a longer-lasting phase called post-acute withdrawal follows.
The First 72 Hours: Acute Withdrawal
The earliest symptoms can appear as soon as a few hours after your last drink. Tremors, often called “the shakes,” usually start within 5 to 10 hours and peak at 24 to 48 hours. Alongside them, you may experience anxiety, nausea, sweating, irritability, and trouble sleeping. For many people, this first wave feels like a bad flu combined with intense restlessness.
Between 24 and 72 hours, symptoms reach their worst point and then begin to ease. This window is also when more serious complications are most likely. Seizures can occur anywhere from 6 to 48 hours after the last drink, with the highest risk at around 24 hours. Hallucinations, when they happen, typically begin 12 to 24 hours in and can last up to two days.
Most people with mild to moderate withdrawal are through the worst of it by day three or four.
Days 3 Through 7: When Severe Cases Diverge
For the majority of people, day five marks a clear turning point. Shaking subsides, sleep starts to return, and the physical discomfort fades. A small number of people, however, develop a dangerous condition called delirium tremens (DTs), which typically begins two to three days after the last drink but can be delayed by more than a week. DTs peak in intensity around days four and five and involve confusion, rapid heartbeat, fever, and severe agitation.
DTs are rare. Roughly 1% to 1.5% of people with alcohol use disorder develop them. But they are a medical emergency and the main reason heavy drinkers are advised not to quit cold turkey without medical support. The people most at risk are those with a history of withdrawal seizures, those who have been through withdrawal multiple times, and those who were drinking very heavily for a prolonged period.
Post-Acute Withdrawal: Months, Not Days
Once the acute phase passes, some people enter a longer stretch of subtler symptoms known as post-acute withdrawal syndrome, or PAWS. This isn’t the shaking-and-sweating phase. It’s primarily psychological: mood swings, anxiety, irritability, difficulty concentrating, low energy, and disrupted sleep. These symptoms tend to fluctuate, coming and going in waves rather than staying constant.
PAWS can last for months and, in some cases, over a year. The unpredictability is part of what makes it difficult. You might feel fine for two weeks, then hit a stretch of poor sleep and heightened anxiety for several days. This pattern gradually becomes less frequent and less intense, but it catches many people off guard because they expected to feel normal once the acute withdrawal ended. Understanding that PAWS is a recognized part of recovery, not a personal failure, helps people stick with sobriety through those rough patches.
What Changes the Timeline
Not everyone follows the same five-day arc. Several factors push the timeline shorter or longer:
- How much and how long you drank. Someone who drank heavily for years will generally have a more intense and longer withdrawal than someone who binged for a few months. Withdrawal requiring medical treatment is rare in people who consumed fewer than six drinks per day.
- Previous withdrawals. Each episode of withdrawal tends to be worse than the last, a phenomenon sometimes called “kindling.” People who have gone through withdrawal multiple times face higher risks of seizures and a longer recovery.
- Age. Older adults often have a more complicated withdrawal course. They may develop significant symptoms even if they were only drinking several drinks per day, partly because they tend to have other health conditions and less physical resilience.
- Medical supervision. People who withdraw under medical care, where clinicians monitor symptom severity and provide medications to calm the nervous system, typically experience a shorter and safer acute phase. Medications reduce the risk of seizures and DTs and help keep symptoms from spiraling.
What Each Phase Feels Like
In the first 12 hours, the experience is mostly physical discomfort: shaky hands, a racing heart, sweating even in a cool room, nausea, and a general sense of being wired and unable to relax. Sleep is difficult or impossible.
Between hours 12 and 48, the physical symptoms intensify and psychological symptoms layer on. Anxiety can become severe. Some people feel a sense of dread or panic that’s hard to attribute to anything specific. This is the period when hallucinations and seizures are possible, though most people experience neither. The craving for a drink is often strongest here because your body is loudly signaling that alcohol would make all of this stop.
From days three through five, the tide turns. Symptoms start loosening their grip. You might still feel shaky and have trouble sleeping, but the worst of the nausea and agitation begins to lift. By the end of the first week, most physical symptoms have resolved.
What lingers beyond that first week is more emotional than physical. Difficulty sleeping can persist for weeks. Anxiety and low mood may come and go for months as your brain chemistry gradually recalibrates. This is the territory of post-acute withdrawal, and it’s the phase where ongoing support, whether through therapy, support groups, or structured recovery programs, makes the biggest practical difference.
Mild vs. Moderate vs. Severe Withdrawal
Clinicians use a scoring system to gauge how serious withdrawal is. The scale measures things like tremor intensity, anxiety level, nausea, sweating, and agitation. People with low scores, indicating mild withdrawal, often don’t need medication and may recover with rest, fluids, and monitoring. Moderate withdrawal involves noticeable physical symptoms like visible shaking, elevated heart rate, and significant anxiety. Severe withdrawal puts someone at risk for DTs and seizures and requires close medical management.
Most people fall into the mild to moderate range. If you’ve been drinking moderately and stop, you may notice some restlessness and poor sleep for a few days and nothing more. If you’ve been drinking a fifth of liquor daily for years, the risk of a severe withdrawal is real and the timeline to full recovery will be longer. The gap between those two scenarios is enormous, which is why blanket timelines only tell part of the story.