Alcohol withdrawal: timeline, symptoms, and when to get help

Alcohol withdrawal is what happens when a body that has adapted to heavy, regular drinking suddenly loses the alcohol it depends on. According to MedlinePlus, symptoms usually begin within 8 hours of the last drink, peak between 24 and 72 hours, then ease over the rest of the week, while changes to sleep, mood, and energy can last for months. Heavy daily drinkers are the ones at real risk, so if that is you, the most important rule on this page comes first: talk to a clinician before you stop, because withdrawal can be life-threatening and the safe way to quit is the medically supervised one.

First, the safety rule

Before the timeline, the part that matters most: stopping alcohol suddenly can be dangerous, and certain symptoms mean you should stop reading and get help now. If things are already moving fast, our crisis resources page lists lines you can reach at any hour. NIAAA describes alcohol withdrawal as a potentially life-threatening process when someone who has been drinking heavily for a prolonged period suddenly stops. If a person in withdrawal shows any of these signs, treat it as an emergency and call emergency services or get to an emergency room:

• Confusion, or not knowing where you are
• A seizure, or repeated seizures
• Fever, heavy sweating, or a racing or irregular heartbeat
• Seeing, hearing, or feeling things that are not there
• Severe, uncontrollable shaking or agitation

This is not a suggestion to be cautious for its own sake. If you have been drinking heavily every day, medical backup is not optional caution, it is the plan. The right order is clinician first, then quitting, and the rest of this page assumes you have that backing if your drinking has been heavy and daily.

What does the alcohol withdrawal timeline look like?

Here is the whole arc in one view. The timings below follow the same primary sources throughout, so the numbers stay consistent instead of drifting from section to section: the clock comes from MedlinePlus and the stage detail from StatPearls. Read the right-hand column first: those are the moments to stop watching the clock and call for help.

Who gets alcohol withdrawal, and how bad does it get?

Not everyone who stops drinking goes through withdrawal, and the people who do are not a random group. Risk tracks the dose and the habit: how much you drank, how often, and for how long. Occasional or light drinking rarely produces more than a rough night. Sustained heavy drinking is the classic setup, because the brain adapts to constant alcohol and then has to swing back when it is removed. For scale, the NIAAA core resource on alcohol counts 15 or more drinks a week for men, or 8 or more for women, as heavy drinking, and it is sustained drinking at or above that level that most often sets up withdrawal. Among people with alcohol use disorder, roughly half develop some withdrawal symptoms when they stop or sharply cut back, according to StatPearls.

How bad it gets falls into three rough tiers. Most people land in the mild-to-moderate range; a minority tip into severe withdrawal. The table below shows what separates them and what each one calls for.

One pattern is worth knowing if this is not your first attempt. Withdrawal tends to get worse, not easier, across repeated episodes, a pattern often called kindling: each unmanaged withdrawal can prime the nervous system for a harsher one next time. StatPearls notes that successive withdrawal episodes tend to increase in severity. A previous rough quit is not a reason to feel doomed; it is a reason to do this one with medical support.

What happens during alcohol withdrawal, day by day?

This is the part every other timeline promises and almost none deliver: an actual day-by-day walk through, from the last drink to two weeks out. Two cautions before you read it. First, these windows overlap and shift from person to person, so treat them as a map, not a guarantee. Second, the timings come from MedlinePlus and StatPearls and match the table above, so nothing here contradicts what you already read.

Hours 0 to 8 (Day 0)

What is common: often very little at first. Many people feel only mild anxiety, restlessness, or the start of a craving as blood alcohol falls. MedlinePlus notes symptoms can appear within 8 hours of the last drink, though they sometimes start later, even a day or more out, so a quiet first evening does not mean you are in the clear. Red flags: this is the window to set up your medical backup, not to test your limits. If you have a history of severe withdrawal, do not wait for symptoms to begin before you contact a clinician.

Hours 8 to 24 (Day 1)

What is common: the body starts to protest. Tremor (the classic shaky hands), sweating, a racing heart, nausea, headache, and insomnia are typical now. This is ordinary, uncomfortable, early withdrawal. Red flags: hallucinations can begin as early as 12 to 24 hours in, sometimes as seeing, hearing, or feeling things that are not there while otherwise alert. Hallucinations are a signal to get medical help, not to wait and see.

Hours 24 to 48 (Day 2)

What is common: symptoms build toward their peak. Shaking, sweating, anxiety, and a fast heartbeat tend to intensify rather than settle. Red flags: the risk of withdrawal seizures is concentrated in roughly the first 8 to 48 hours, per StatPearls. A seizure is an emergency every time. So are repeated vomiting that stops you keeping fluids down, and shaking so severe you cannot function. Any of these means call for help now.

Hours 48 to 72 (Day 3)

What is common: for most people this is the peak, the worst of it, after which acute symptoms begin to ease. MedlinePlus places the peak at 24 to 72 hours. Red flags: this window is also when delirium tremens, the most dangerous form of withdrawal, typically appears, usually 48 to 72 hours after the last drink. The DT picture is blunt and unmistakable: sudden severe confusion, fever, agitation, a pounding or irregular heart, and vivid hallucinations. It is a medical emergency. DTs are uncommon, developing in only a small share of withdrawal cases, around 3 to 5 percent in StatPearls, but when they occur they can be fatal without treatment, which is exactly why the high-risk reader belongs in a monitored setting through this window.

Days 4 to 7

What is common: the acute storm recedes. Heart rate and tremor settle, nausea fades, and each day is usually easier than the last. Sleep is still poor and cravings can be loud, often loudest around days 3 to 5, with the first genuinely deep sleep arriving for many around nights 5 to 7. For a sense of how this week feels from the inside, see our guide to 7 days without alcohol. As a rough yardstick, one rehab network's own survey of 2,136 people found acute symptoms lasted about 4.8 days on average, with 95 percent of respondents falling between 2 and 8 days. Red flags: by now the trend should be toward improvement. Symptoms that are getting worse instead of better, or new severe symptoms appearing late, are a reason to be re-assessed rather than ridden out.

Days 8 to 14

What is common: by the second week most people are past acute withdrawal. What can linger is the quieter tail: fatigue, mood swings, and fragile, broken sleep. MedlinePlus notes that changes to sleep, mood, and energy can persist for weeks to months after the acute phase ends. This is normal recovery, not a relapse of withdrawal, and it improves. If you want the longer arc, from here out to a year, our week-by-week quit-drinking timeline maps what the body keeps doing. Red flags: genuinely new or returning severe symptoms this late are unusual and worth a medical call, since they can point to something other than ordinary withdrawal.

When is detoxing at home not safe?

Plenty of people with mild withdrawal recover at home with a clinician's blessing and a check-in plan. The point of this section is the other group, the people for whom home is the wrong call, because rehab pages tend to bury this list under a phone number. Home detox is generally not safe if any of the following is true:

• You have ever had a withdrawal seizure or delirium tremens.
• You have been drinking heavily every day for a sustained stretch.
• A past withdrawal was severe, whatever has happened since.
• You have significant medical or psychiatric conditions.
• You are pregnant.
• There is no one who can stay with you and check on you.
• You have tried to stop at home before and it went badly.

Supervised withdrawal exists for exactly these situations. It is not a failure or a luxury; it is the appropriate level of care. Withdrawal can be handled in several settings, and NIAAA notes that intensive inpatient programs "may manage withdrawal" when that level of monitoring is needed. If you are weighing where to start or how to find that care, our guide to how to get help for drinking walks through the options.

How do clinicians assess and treat withdrawal?

Knowing what supervised care actually involves takes some of the fear out of asking for it. Clinicians do not guess at severity; they measure it. The standard tool is the CIWA-Ar, the Clinical Institute Withdrawal Assessment for Alcohol, a 10-item scale that scores things like tremor, sweating, anxiety, nausea, and agitation to grade how severe withdrawal is and to guide how much medication a person needs, as outlined in StatPearls. The score is repeated over time, so treatment rises and falls with the symptoms instead of being a fixed dose.

For medication, the first-line treatment is benzodiazepines, given under medical supervision to calm the over-excited nervous system and head off seizures and DTs. The American Society of Addiction Medicine guideline supports benzodiazepines as first-line and reserves outpatient, or ambulatory, management for milder withdrawal in people who can be monitored, with more severe cases handled in a facility. This is not a place for self-medication. Topping yourself up with more alcohol, or borrowing someone else's pills, is how a manageable withdrawal becomes a dangerous one.

Two things are worth saying plainly. First, treatment works: with prompt, monitored care, the large majority of people come through even severe withdrawal and delirium tremens safely, whereas untreated it can be fatal, which is why MedlinePlus describes withdrawal at this level as something that may quickly become life-threatening. Second, medication for withdrawal is short-term and separate from the medication that helps people stay stopped afterward; if that longer path interests you, see our guide to medications to stop drinking.

What is PAWS, and why do some symptoms last for months?

Some people feel basically themselves after two weeks. Others notice that sleep, mood, and energy stay unsettled for much longer, and they go looking for a name for it. The name they usually find is PAWS, post-acute withdrawal syndrome. It is worth being straight about what that is and is not. PAWS is a widely used shorthand in recovery communities, not a formal diagnosis in the DSM-5, and you will not find a single clean clinical definition or timeline for it. What is well documented is the underlying experience: MedlinePlus notes that changes to sleep, mood, and energy can last for weeks to months after the acute phase.

The useful mental model is waves, not a straight line. A good stretch is often followed by a flat or irritable one, then another good stretch, with the difficult patches getting shorter and farther apart over time. Knowing that the dips are normal and temporary takes a lot of their power away. Three of these lingering pieces have their own guides: the slow repair of alcohol and sleep, the rebound in alcohol and anxiety, and the practical work of how to stop alcohol cravings when they surface weeks later.

If you are reading this at 2 a.m.

Maybe none of this is theoretical right now. If you are awake and frightened, hold on to the simple version. Call emergency services or go to an emergency room if you, or someone you are with, has any of these: confusion or not knowing where you are; a seizure; fever, heavy sweating, or a racing or irregular heartbeat; seeing, hearing, or feeling things that are not there; or severe, uncontrollable shaking or agitation. Those are not symptoms to sleep off. Our crisis resources page has lines you can reach this minute.

If you are not in danger but you are scared of what stopping might do, the move is the same one this whole page keeps pointing at: talk to a clinician before you quit, especially if your body has gotten used to alcohol every day. That single conversation is what turns a risky solo attempt into a safe plan.

None of that is a job for an app, and no app manages withdrawal or replaces medical care. Once a clinician has confirmed it is safe for you to stop and the acute danger has passed, Orlyn, our iOS app, is built for the part that comes next: tracking your alcohol-free days, getting through cravings in the moment, and a 24/7 AI coach (clearly labeled AI, not medical care) for the hard minutes between appointments. The medical gate comes first. The app, and a support group if you want people who understand, are for the long road after it.

All guides · Start Day One