How Long Does Alcohol Withdrawal Last?
Quick answer: Acute alcohol withdrawal usually lasts about 5–7 days, with symptoms peaking 24 to 72 hours after the last drink — though for some people symptoms can go on for weeks. Many people then experience a longer, milder phase — anxiety, sleep disruption, mood swings — that can persist for weeks to months.
Safety note: If you drink heavily or daily, it can be very dangerous to stop drinking suddenly — get medical help before you try to stop. Severe withdrawal can involve seizures and delirium tremens, both of which are medical emergencies.
"How long will this last?" is one of the first questions people ask when stopping drinking. It's a reasonable question — and having an honest answer helps you plan, stay safe, and hold on when things get hard.
The answer isn't one-size-fits-all. But the arc of withdrawal is predictable enough that we can give you a realistic picture.
The Two Phases of Alcohol Withdrawal
Understanding how long withdrawal lasts requires distinguishing between two distinct phases:
Acute withdrawal — the intense physical phase that most people think of when they hear "withdrawal": tremors, sweating, anxiety, insomnia, and the risk of serious complications. This is the phase that has a clear beginning and end.
Post-acute withdrawal syndrome (PAWS) — a more prolonged, lower-intensity phase that can continue for weeks to months, characterized primarily by psychological and cognitive symptoms.
Acute Withdrawal: The Timeline
Hours 6–24: Onset
For most people who've been drinking heavily, symptoms begin within 6 to 24 hours of the last drink, and some notice them within about 8 hours.
Early symptoms: anxiety, mild tremors, sweating, nausea, elevated heart rate.
Hours 12–48: Escalation to Peak
This window represents the escalation period, when symptoms move from uncomfortable to most intense. Symptoms peak around the 24–72 hour mark.
Withdrawal seizures typically occur between 8 and 48 hours after the last drink, with more than 90% falling inside the first 48 hours. A minority of people develop more severe symptoms — escalating toward delirium tremens — most often in the 48–96 hour window.
Safety warning: If you experience a seizure, significant confusion, hallucinations, or high fever during this window, call 911. These require emergency medical care.
Days 3–5: Peak to Improvement
For people who don't develop complications, days 3–5 typically mark the shift from peak intensity to gradual improvement. The severe shaking often eases. Sweating decreases. Anxiety, while still present, often becomes less overwhelming.
Most of the measurable physical danger has passed by day 5 for people without complications.
Days 5–7: Acute Withdrawal Resolving
By the end of the first week, most acute withdrawal symptoms have resolved or substantially reduced for most people. Physical symptoms like tremors and sweating are largely gone. Appetite may return.
Sleep is still disrupted. Mood is often volatile. Energy is low. But the physical crisis — the part that requires intensive monitoring — is largely over.
For most people: acute withdrawal lasts approximately 5–7 days.
What Makes Withdrawal Last Longer?
Several factors can extend the duration or intensity of acute withdrawal:
Duration and quantity of drinking The longer and more heavily someone has been drinking, the more extensive the neurochemical adaptation — and the more time it can take to resolve. A person who has been drinking heavily for 20 years will typically have a more prolonged withdrawal than someone who has been drinking heavily for 6 months.
Age Age over 65 is a recognized risk factor for severe withdrawal, and recovery tends to take longer.
Prior withdrawal history (kindling) Each withdrawal episode can sensitize the nervous system: the likelihood of withdrawal seizures, and their severity, increases with the number of past withdrawals.
Overall health Liver disease, malnutrition, and other health conditions affect how the body processes both alcohol and the withdrawal state.
Medical management People who receive appropriate medication (benzodiazepine taper) during withdrawal often have a shorter and less severe acute phase. Our free withdrawal risk checker runs through these same factors and returns a risk band.
After Acute Withdrawal: Post-Acute Withdrawal Syndrome (PAWS)
For many people — particularly those with longer drinking histories — withdrawal doesn't end cleanly at day 7. A second phase, often called post-acute withdrawal syndrome or PAWS, can continue for weeks to months.
PAWS symptoms are different from acute withdrawal in important ways:
- They're less intense and not medically dangerous
- They come and go in waves rather than persisting continuously
- They're primarily psychological and cognitive rather than physical
Common PAWS Symptoms
- Intermittent anxiety, sometimes intense
- Low mood, flat affect, or depression
- Sleep disruption and fatigue
- Difficulty concentrating or thinking clearly
- Mood swings and emotional sensitivity
- Low motivation or anhedonia
- Cravings that can emerge unpredictably
How Long Does PAWS Last?
There is no single agreed timeline. The trajectory is generally improvement over time, but not linear — many people experience "waves" of worse symptoms alternating with periods of feeling nearly normal. Sleep is the component that has been measured most carefully, and it is slow: studies find limited recovery of sleep disturbance within the first 30 days of abstinence, with only partial recovery of slow-wave sleep by around three months, and for nearly half of people sleep disturbance persists for months after the last drink. Expect months rather than weeks, and treat that as normal rather than as a setback.
This is not a relapse of acute withdrawal. It is the brain continuing to restore neurochemical balance after years of alcohol's effects. Understanding PAWS as a distinct, expected phase — rather than a sign that something is permanently wrong — is important for navigating early sobriety.
A Note on Variation
The timelines above describe typical experiences. Some people have briefer, milder withdrawal. Others have extended, more difficult courses. Some people reach day 7 feeling dramatically better; others are still managing significant symptoms.
None of these are a moral statement about the person. They reflect the biology of dependence.
Tracking Your Own Arc
One of the most useful things anyone can do during withdrawal is track their symptoms day by day. When you're in day 3 and feel like you'll never feel better, being able to see "day 1 I rated my anxiety a 9, today it's a 7" provides tangible evidence of movement. The Rebuild app's daily symptom logging is built for exactly this — so you can see your own withdrawal arc, not just read a general timeline.
Frequently Asked Questions
Is a week of withdrawal the same for everyone?
No. The timeline varies significantly based on drinking history, age, health, and whether medical support was used. The 5–7 day acute withdrawal window is an average, not a guarantee.
It can. Symptoms typically peak in the first 72 hours, but they may go on for weeks. If severe physical symptoms are persisting beyond two weeks, see a doctor — there may be another contributing factor. Milder, intermittent symptoms lasting longer than that are a normal part of longer-term recovery.
Does withdrawal get shorter with each quit attempt?
Not necessarily. Due to the kindling effect, subsequent withdrawal episodes can actually be more severe and potentially longer than previous ones, even if the most recent drinking period was shorter. Prior withdrawal history is an important reason to approach future quit attempts with medical support.
When can I expect to feel "normal" again?
This varies. Many people feel physically recovered within a few weeks. Cognitive recovery is measurable but gradual: substantial improvements in neurobehavioral function occur during the first 4 to 8 weeks of abstinence, with some domains continuing to improve over months to years. Sleep, mood stability, and mental clarity tend to be the areas that show the most meaningful improvement as weeks and months accumulate.