Here at Porch Light Health, we know that deciding to stop drinking is rarely a calm, planned moment. Most of the people who call us are already in the middle of it, wondering what their body is about to do and whether they need to be in a clinic to do it safely.
This guide walks through what alcohol withdrawal usually looks like from the first 6 hours through the first year, and what counts as a red flag. It also covers how our outpatient medically supervised withdrawal team decides who is safe to detox at home and who needs a higher level of care.
If you have a heavy drinking history or you have been through withdrawal before, please read the seizure and delirium tremens sections before you stop on your own.
The quitting drinking timeline follows a predictable rhythm in most adults with alcohol use disorder. The table below is the version we walk new patients through during a phone screen, and the rest of the article fills in each stage.
| Time Since Last Drink | What Usually Happens | Risk Level |
| 6 to 12 hours | Tremor, anxiety, sweating, nausea, mild insomnia | Low. Monitor at home |
| 12 to 24 hours | Symptoms intensify, blood pressure and pulse rise, brief hallucinations possible | Moderate. Call a clinician |
| 24 to 48 hours | Peak seizure window for at-risk drinkers | High. Medical evaluation advised |
| 48 to 72 hours | Delirium tremens window, severe confusion and fever possible | Highest. Emergency care if symptoms appear |
| 3 to 7 days | Vitals stabilize, sleep starts to return | Moderate. Continue medical follow-up |
| 1 to 4 weeks | Insomnia, anxiety, and cravings often persist | Low medical, high relapse |
| 1 to 3 months | Mood, sleep, and liver enzymes begin to improve | Recovery phase |
| 6 to 12 months | Cognitive function and emotional regulation continue to recover | Relapse risk remains, ongoing care recommended |
About half of people with alcohol use disorder who stop drinking abruptly will experience some level of withdrawal, and roughly 3-5% develop severe complications such as seizures or delirium tremens, according to the American Family Physician clinical review on outpatient management of alcohol withdrawal. That ratio is the reason we screen everyone before they stop, not after.
For most adults who have been drinking daily, the first signs of withdrawal show up before the next morning. The body has been suppressing its own excitatory pathways to compensate for chronic alcohol, and when the alcohol comes out, that compensation surfaces as tremor and anxiety.
Typical early signs include:
Headache and a sense of internal restlessness are also common. These symptoms can be uncomfortable, but they are usually safe for someone with no prior severe withdrawal history.
We tell patients to track symptoms with a simple log: time, what they feel, pulse if they can measure it, and whether anything is getting worse. That log is the single most useful thing to bring to a same-day clinic visit or telehealth appointment.
By the end of the first day, symptoms tend to intensify. Pulse and blood pressure climb, brief visual or tactile hallucinations can appear in people with heavier drinking histories, and sweating often gets heavy enough to soak through clothing, a pattern we walk through in our night sweats after drinking post. This is often when patients call us and say something like, “I thought I could handle this.”
If you have ever had a withdrawal seizure, a hospitalization for detox, or a diagnosis of delirium tremens, the safer plan is to be evaluated before any of this starts, not after.
This is the window we worry about most. Withdrawal seizures typically appear 6 to 48 hours after the last drink and are most common in the 24 to 48 hour window. Delirium tremens usually begins 48 to 72 hours in, though it can start later for some patients.
The StatPearls clinical review on alcohol withdrawal walks through the underlying neurochemistry and the typical timing of each complication.
Withdrawal seizures are usually generalized tonic-clonic events, often a single seizure or a short cluster. They tend to occur without warning in patients who looked relatively stable an hour earlier. About a third of patients who seize will go on to develop delirium tremens if they are not medically managed.
If you see a seizure, call 911. After any withdrawal seizure, the person needs an evaluation in an emergency department or a hospital-level detox setting.
Delirium tremens is a clinical syndrome of severe confusion, agitation, fever, sweating, fast heart rate, high blood pressure, and vivid hallucinations. Untreated, the mortality rate has historically been as high as 15%. With benzodiazepine-based treatment and supportive care, that number drops substantially, which is why early medical contact matters.
Risk factors for delirium tremens include:
Go straight to the ER, or call 911, for any of the following:
Each uncontrolled alcohol withdrawal can make the next one start faster and hit harder. Researchers call this kindling, and it is one of the strongest arguments against quitting on your own if you have done it before.
A patient with three prior unsupervised withdrawals is not the same risk as someone stopping for the first time, even if the drinking history looks similar on paper.
Clinicians use the Clinical Institute Withdrawal Assessment for Alcohol, Revised (CIWA-Ar) to score 10 symptoms on a 0 to 7 scale, with one item scored 0 to 4. The total ranges from 0 to 67, and the score guides whether a patient needs benzodiazepines, hospital-level monitoring, or can be managed at home with check-ins.
| CIWA-Ar Total | Severity | What It Usually Means Clinically |
| 0–8 | Minimal to mild | Often safe to manage at home with hydration, support, and follow-up |
| 9–15 | Moderate | Symptom-triggered medication usually appropriate, frequent reassessment |
| 16+ | Severe | Higher risk of seizures and delirium tremens, structured medical treatment recommended |
The score is not a stopwatch. It is a snapshot. A patient at 9 in the morning can be at 18 by evening, which is why a single number is never enough to predict the rest of the course. Our nurses repeat the assessment regularly during outpatient detox, and any climb above 15 prompts a higher level of care.
Acute physical withdrawal symptoms peak in the 24 to 72 hour window and largely resolve within 5 to 7 days for most patients. Tremor, autonomic instability, and sweating are the most persistent of the acute signs, and they typically fade in that order.
Several factors tend to lengthen or worsen the course:
If withdrawal is moderate to severe, we typically order a complete blood count, basic metabolic panel, magnesium, phosphate, liver function tests, and a urine drug screen. The NIAAA clinician guidance describes the labs and clinical assessment patterns we use during outpatient management.
The right detox setting depends on withdrawal severity, prior history, current medical and psychiatric status, and the supports available at home. Our admissions team uses a standard set of criteria during the first call to match patients to the right level, and our broader treatment programs cover everything from acute detox through ongoing outpatient care.
| Setting | Typical Patient | What Care Includes | Usual Length |
| Inpatient medically managed detox | Severe withdrawal, prior DTs or seizures, unstable vitals, acute medical or psychiatric complications | IV fluids, IV thiamine, continuous monitoring, scheduled or symptom-triggered benzodiazepines | 3 to 7 days |
| Residential detox | Moderate withdrawal, needs 24/7 non-ICU observation, limited home support | Oral benzodiazepines, vitals every 1–4 hours, nursing assessment, peer support | 5 to 10 days |
| Outpatient medical detox | Mild to moderate withdrawal, stable vitals, reliable transport and home support | Daily clinic visits, symptom-triggered dosing, CIWA-Ar assessments, family education | 5 to 7 days |
| Supervised taper | Lower-risk patients, gradual reduction preferred over abrupt stop | Scheduled benzodiazepine or long-acting medication taper, weekly visits | 1 to 4 weeks |
Outpatient detox is not appropriate when any of the following are present:
In those cases, the safer route is residential or inpatient care, and we coordinate the referral directly.
Our medication for addiction treatment program picks up immediately after detox, because the window between physical stabilization and relapse is short. For most patients, that means starting naltrexone or acamprosate within the first week.
Two categories of medication matter during the quitting drinking timeline:
| Medication | Phase | What It Does | When It Is Typically Used |
| Diazepam, lorazepam, chlordiazepoxide | Acute withdrawal | Replace alcohol’s GABA effect, prevent seizures and delirium | Symptom-triggered or scheduled dosing during detox |
| Phenobarbital | Acute withdrawal (selected cases) | Broader GABA activity, useful in benzodiazepine-resistant cases | Hospital or specialty detox settings |
| Thiamine, folate, multivitamin | Acute and early recovery | Prevent Wernicke encephalopathy, replenish deficits | Started during detox, continued at home |
| Naltrexone (oral or extended-release) | Relapse prevention | Reduces alcohol cravings and the reward from drinking | Started after acute withdrawal is controlled |
| Acamprosate | Relapse prevention | Stabilizes glutamate and GABA systems during early recovery | Started 5 to 7 days after the last drink |
| Disulfiram | Relapse prevention | Causes an aversive reaction if alcohol is consumed | For motivated patients with supervised administration |
Benzodiazepines remain the first-line treatment for moderate to severe alcohol withdrawal because they prevent seizures and delirium tremens. We start relapse-prevention medication once acute withdrawal is controlled and we have a current liver panel.
For patients weighing relapse-prevention options, our blog comparing Antabuse and naltrexone walks through how each medication works and which clinical situations favor one over the other. Many patients choose oral or long-acting naltrexone as part of their longer plan, and the conversation usually starts during the detox visit so the medication is in place by the time cravings peak.
If a clinical evaluation confirms you can detox at home, a small amount of preparation reduces a lot of risk. We give every outpatient detox patient a version of this list before day one.
Do not drive during withdrawal. Do not take any sedative, opioid, or sleep aid that was not prescribed for this detox. If any red-flag listed earlier in this article appears, call the clinic or 911.
Post-acute withdrawal syndrome is the cluster of mood, sleep, cognitive, and craving symptoms that lingers after acute physical withdrawal is over. It reflects slow neurochemical recalibration, particularly in glutamate signaling in the nucleus accumbens and prefrontal cortex.
Neurobiological evidence supports these changes lasting weeks to months after the last drink, and the symptoms tend to improve gradually rather than disappearing on a single date.
PAWS is not a sign that recovery is failing. It is a sign that the brain is still adapting. The patients who do best are usually the ones who treat months 1 through 6 as an active recovery phase, not a waiting phase.
If two or more of those signs are present, this is the moment to add a session or restart medication, not the moment to wait until the next scheduled visit.
Many physical and lab markers move in a predictable order after the last drink. The exact pace depends on the prior drinking pattern and any existing organ damage, but the order is consistent in most patients.
| Milestone | Health Change You Can Usually Expect |
| 1 week | Hydration improves, blood pressure begins to settle, sleep starts to return |
| 2 to 4 weeks | ALT often normalizes for patients with simple alcohol-related fatty liver |
| 2 to 6 weeks | AST trends back toward normal in patients without severe liver disease |
| 4 to 8 weeks | GGT begins to fall as it has a longer half-life than other liver enzymes |
| 1 to 3 months | Resting blood pressure, sleep, and mood show measurable improvement |
| 3 to 6 months | Memory and concentration continue to recover, weight and metabolic markers improve |
| 6 to 12 months | Cardiovascular risk profile improves, relapse risk decreases with sustained treatment |
The liver enzyme timelines above reflect what we typically see in patients who maintain abstinence and do not have advanced liver disease. We repeat liver enzymes at 4 to 12 weeks and again at 3 to 6 months to track recovery and to catch any pattern that suggests ongoing or relapsed drinking.
Withdrawal severity is not uniform. The same drinking history can produce a mild course in one person and a severe one in another, and a handful of factors do most of the explaining.
People with higher risk for severe or prolonged withdrawal include:
In these cases, medical detox is not a preference, it is the standard of care. Skipping it tends to extend recovery, not shorten it, because each uncontrolled episode raises the risk of the next. Patients with active psychiatric symptoms often benefit from a parallel evaluation through our addiction psychiatry services so medication for both conditions can be coordinated from the start.
If you fit any of the higher-risk categories, please bring it up in the first phone call. Our admissions team uses that history to decide whether we can manage you safely in our outpatient detox program or whether the safer route is a residential or hospital partner.
A predictable obstacle in the quitting drinking timeline is the gap between deciding to stop and being seen by a clinician. The longer that gap, the more likely a patient is to either drink again or start detox at home without support.
Porch Light Health uses three care formats to close that gap across Colorado and New Mexico:
For patients with logistic or cost barriers, the sliding fee program and insurance verification can usually be handled in the same first call. Mobile and clinic locations are listed on our find a clinic page, and a brief overview of what early appointments involve is on our what to expect page.
If you are not sure which format fits your situation, the fastest way to find out is to call our team at 866-839-8868 and we can match you to a same-day option.
What is the typical timeline for alcohol withdrawal after the last drink?
Mild symptoms usually start within 6 to 12 hours of the last drink. Symptoms typically peak between 24 and 72 hours, and most acute physical symptoms resolve within 5 to 7 days. Cravings, sleep disruption, and mood symptoms can continue for weeks to months.
What symptoms appear in the first 6 to 12 hours?
Tremor, anxiety, sweating, nausea, headache, a faster pulse, and insomnia are typical. For people with no prior severe withdrawal, these symptoms are uncomfortable but usually safe to manage with support and follow-up.
When do alcohol withdrawal symptoms peak?
Physical symptoms generally peak in the 24 to 72 hour window after the last drink. This is also when seizures and delirium tremens are most likely in at-risk drinkers.
When can alcohol withdrawal cause seizures?
Withdrawal seizures most often occur 6 to 48 hours after the last drink, with the highest risk in the 24 to 48 hour window. Prior withdrawal seizures, heavy long-term drinking, and abrupt cessation of high daily intake all raise that risk.
What is delirium tremens and when does it start?
Delirium tremens is a severe withdrawal state with confusion, agitation, hallucinations, fever, fast heart rate, and high blood pressure. It typically begins 48 to 72 hours after the last drink, though it can start later. It requires hospital-level treatment.
Can alcohol withdrawal be life threatening?
Yes. Untreated severe withdrawal, particularly delirium tremens or repeated seizures, can be fatal. Medical evaluation and benzodiazepine treatment reduce that risk substantially.
Is it safe to detox from alcohol at home?
It depends on the drinking history, prior withdrawal episodes, current medical status, and the supports available at home. People with no prior severe withdrawal and mild symptoms may detox at home under medical follow-up. Anyone with prior seizures, prior delirium tremens, unstable vitals, pregnancy, or active suicidality should not detox at home.
How long do alcohol cravings last?
Cravings typically peak in the first 1 to 2 weeks and decline over the next several weeks. Some patients report intermittent cravings for 6 to 12 months as the brain continues to adapt. Naltrexone and acamprosate can reduce craving frequency and intensity.
When do sleep and mood improve after quitting drinking?
Many people notice some improvement in sleep and mood within 2 to 4 weeks. Sleep architecture and emotional regulation often take 1 to 3 months to fully normalize, and patients with longer drinking histories may need longer.
Does the liver heal after quitting drinking?
Alcohol-related fatty liver often improves within 2 to 6 weeks of abstinence. ALT typically normalizes within 2 to 4 weeks, AST within 2 to 6 weeks, and GGT within 4 to 8 weeks, though severe liver damage may not fully reverse. Repeat liver enzymes at 4 to 12 weeks help track recovery.
What medications are used to treat alcohol withdrawal?
Benzodiazepines such as diazepam, lorazepam, and chlordiazepoxide are first-line for moderate to severe withdrawal. Thiamine, folate, and a multivitamin are standard. Phenobarbital is used in selected hospital cases. Naltrexone and acamprosate are added after acute withdrawal for relapse prevention.
How is the right level of detox care chosen?
A clinician reviews the drinking history, prior withdrawal episodes, current symptoms, medical and psychiatric status, and home supports. CIWA-Ar scores help quantify severity. The result is a match to inpatient, residential, outpatient, or supervised taper care.
What is post-acute withdrawal syndrome (PAWS)?
PAWS is the cluster of mood, sleep, cognitive, and craving symptoms that can continue for weeks to months after acute withdrawal resolves. It reflects ongoing neurochemical adjustment in the brain and is best managed with continued medication and counseling.
Who is at higher risk for severe withdrawal?
People with very heavy or prolonged drinking, prior withdrawal seizures or delirium tremens, older age, significant medical or psychiatric illness, low nutritional status, and certain interacting medications face higher risk. These patients usually need supervised detox.
What should I do right now if I think I am in withdrawal?
Stop drinking only after a brief safety check. If you have any history of seizures, delirium tremens, or detox hospitalizations, call a clinician before stopping. For active confusion, fever, chest pain, fainting, or seizure activity, call 911.
If you are planning to stop drinking, or you have already stopped and are feeling symptoms, please do not wait for things to get worse. A short conversation with one of our nurses or providers can determine whether you can detox at home, whether you need a clinic visit today, or whether the safer plan is a residential program.
We offer same-day in-clinic, mobile, and telehealth appointments across Colorado and New Mexico, and we coordinate higher levels of care when those fit better.
Call 866-839-8868 or schedule an appointment to start. If you are reading this for a loved one and you are not sure how to bring it up, our admissions team has that conversation with families every day, and we can walk you through it.
