Alcohol withdrawal timeline: symptoms day by day.
Understanding what happens to your body during alcohol withdrawal — and when the risk is highest — is one of the most useful pieces of information you can have before you stop drinking. This guide gives you a clear, clinically accurate picture of the withdrawal timeline.
Begin your assessment6–12 hours: early withdrawal
Within six hours of your last drink, the first withdrawal symptoms typically begin to appear. For many people, this is when they first become aware that their body has developed a physical dependence on alcohol. Early symptoms include:
- Tremor (shaking) — particularly noticeable in the hands.
- Anxiety and restlessness.
- Sweating, including night sweats if stopping overnight.
- Nausea and occasionally vomiting.
- Elevated heart rate (tachycardia).
- Headache.
- Difficulty sleeping or staying asleep.
12–24 hours: increasing intensity
Between 12 and 24 hours after the last drink, symptoms typically intensify. Blood pressure and heart rate rise further. Anxiety may become significant. Some patients begin to experience perceptual disturbances — heightened sensitivity to light and sound, and occasionally minor visual or auditory hallucinations. This stage is also when the risk of seizures begins to increase.
24–72 hours: peak risk
The period between 24 and 72 hours is the highest-risk window in alcohol withdrawal. This is when:
- Withdrawal seizures are most likely to occur — typically generalised tonic-clonic (grand mal) seizures.
- Delirium tremens (DTs) may develop, usually between 48 and 72 hours. DTs involve severe confusion, profound agitation, hallucinations (visual, auditory, and tactile), and cardiovascular instability. They are a medical emergency.
- Blood pressure may reach dangerously elevated levels.
3–7 days: subsiding acute withdrawal
For most patients without complications, the acute withdrawal phase begins to resolve between days three and seven. Physical symptoms diminish progressively. Sleep often remains disrupted. Appetite begins to return. Mood may be low or anxious as the brain's reward system begins to readjust. By day seven, most patients have completed their medication reducing regime and are physically past the acute withdrawal. This does not mean recovery is complete.
PAWS: post-acute withdrawal syndrome
Post-Acute Withdrawal Syndrome (PAWS) refers to a cluster of symptoms that can persist for weeks or months after acute withdrawal has resolved. It reflects the time it takes for the brain's neurotransmitter systems — particularly GABA and glutamate — to return to their pre-dependence baseline. Common PAWS symptoms include:
- Persistent anxiety, irritability, or mood instability.
- Sleep disturbance — difficulty falling asleep or staying asleep.
- Cognitive difficulties — poor concentration, memory problems, mental fog.
- Strong cravings for alcohol, often triggered by stress or environmental cues.
- Low energy and anhedonia (difficulty experiencing pleasure).
When to seek emergency help
Call 999 immediately if you or someone withdrawing from alcohol experiences:
- A seizure lasting more than five minutes, or a second seizure without full recovery.
- Severe confusion, profound disorientation, or hallucinations that are worsening.
- Loss of consciousness.
- Chest pain or difficulty breathing.
- Signs of Wernicke's encephalopathy: sudden confusion, abnormal eye movements, inability to walk or coordinate.
Clinical note: This page provides clinical information for general guidance purposes. It does not constitute medical advice. If you are experiencing withdrawal symptoms now, contact a medical professional or call 999.
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