Withdrawal timeline phase by phase
Below is the typical withdrawal timeline for alcohol. Individual experience varies — duration of use, average daily dose, polysubstance use, age, liver/kidney function, and co-occurring mental health all shift the pattern. The phases below describe the average presentation in clinical settings.
Phase 1 · 6–12 hours after last drink
Early withdrawal
- Anxiety
- Insomnia
- Nausea
- Sweating
- Hand tremors
- Mild headache
Phase 2 · 12–48 hours
Moderate withdrawal
- Increased blood pressure and heart rate
- Confusion
- Vomiting
- Hyperthermia
- Hallucinations (visual, auditory, tactile) — usually clear consciousness
Phase 3 · 48–72 hours
Peak withdrawal — delirium tremens risk
- Severe disorientation
- Hallucinations with altered consciousness
- Seizures (typically peak around 24–48 hours)
- Severe autonomic instability — can be life-threatening
Phase 4 · Days 4–7
Resolution of acute withdrawal
- Acute symptoms gradually settle
- Sleep starts to normalise
- Mood remains low and anxious
Phase 5 · Weeks 2–8
Post-acute withdrawal
- Sleep disturbance
- Mood swings
- Cravings
- Cognitive haze ('brain fog')
- Cravings peak around weeks 2–4
Medications and medical management
Benzodiazepines (typically diazepam) on a tapered dose are the standard pharmacological treatment, alongside thiamine (vitamin B1) to prevent Wernicke's encephalopathy. Some hospitals use phenobarbital or anticonvulsants for very severe presentations.
Where to detox safely
Hospital detox is the safest setting for severe alcohol withdrawal. Dedicated detox units in NGO providers are appropriate for moderate cases. Supervised home detox with daily nurse visits is appropriate for mild cases with low complication risk and stable home environment.
When to call 000
What helps in the post-acute phase
The hardest part of alcohol withdrawal is rarely the first few days — it is the weeks that follow. Sleep is disrupted, mood is low, cravings come and go in waves, and cognitive sharpness recovers slowly. The interventions that consistently help: structured psychological therapy (CBT, motivational interviewing, mindfulness-based relapse prevention), peer support (SMART Recovery, AA, NA, CA — choose by fit), continued GP and addiction-medicine follow-up, ongoing relapse-prevention medication where relevant, and a written relapse-prevention plan that names triggers and rehearsed responses.
People who engage with structured aftercare for 12 months or more after a withdrawal episode have dramatically better long-term outcomes than people who treat withdrawal as a one-off event. The single most predictive question to ask any program: "What does aftercare look like in the 12 months after I leave?"
Frequently asked questions
How long does alcohol withdrawal last?
Acute alcohol withdrawal typically lasts 2–8. Post-acute symptoms — sleep, mood, cravings — can persist for weeks to months. The acute phase is the medically dangerous one; the post-acute phase is uncomfortable but rarely dangerous.
Is alcohol withdrawal dangerous?
Yes. Severe alcohol withdrawal can cause seizures and delirium tremens, both of which can be fatal. Anyone drinking heavily every day for weeks or months should NEVER stop cold-turkey without medical supervision.
Can I detox from alcohol at home?
Not safely without medical supervision. Hospital detox is the safest setting for severe alcohol withdrawal. Dedicated detox units in NGO providers are appropriate for moderate cases. Supervised home detox with daily nurse visits is appropriate for mild cases with low complication risk and stable home environment.
What medications help with alcohol withdrawal?
Benzodiazepines (typically diazepam) on a tapered dose are the standard pharmacological treatment, alongside thiamine (vitamin B1) to prevent Wernicke's encephalopathy. Some hospitals use phenobarbital or anticonvulsants for very severe presentations.