Drug and alcohol withdrawal produces a predictable pattern of symptoms that varies by substance. Understanding the timeline for each substance helps you prepare for what lies ahead and know when to seek emergency medical care.
Withdrawal can be medically dangerous for alcohol, benzodiazepines, and some opioids. Always consult a medical professional before stopping any substance abruptly.
Opioid withdrawal timeline
Symptoms begin 8 to 24 hours after last use for short-acting opioids (heroin, oxycodone) and 24 to 72 hours for long-acting opioids (methadone). Peak symptoms occur at days 2 to 3 and resolve within 7 to 10 days.
- Early: anxiety, muscle aches, insomnia, sweating, yawning
- Peak: nausea, vomiting, diarrhea, abdominal cramps, dilated pupils
- Late: lingering fatigue, depression, cravings
Benzodiazepine withdrawal timeline
Onset depends on the specific benzodiazepine. Short-acting (Xanax): 6 to 12 hours. Long-acting (Valium): 24 to 72 hours. Peak symptoms at 1 to 2 weeks. Protracted withdrawal can last months.
- Anxiety, panic attacks, and insomnia
- Seizures (potentially life-threatening)
- Tremors, muscle tension, and sweating
- Perceptual disturbances and sensitivity to light and sound
Stimulant withdrawal timeline (cocaine, meth)
Crash phase begins within hours of last use. Peak symptoms occur at days 2 to 4. Most symptoms resolve within 1 to 2 weeks, though depression and cravings can persist for months.
- Extreme fatigue and increased sleep
- Depression and anhedonia
- Increased appetite
- Vivid dreams
- Irritability and agitation
Marijuana withdrawal timeline
Symptoms begin within 24 to 72 hours, peak at days 4 to 6, and typically resolve within 2 to 3 weeks. Symptoms include irritability, anxiety, sleep disturbance, decreased appetite, and cravings.
When to seek emergency help
- Seizures or convulsions
- Severe confusion or hallucinations
- Chest pain or difficulty breathing
- Suicidal thoughts
- Uncontrollable vomiting with inability to keep fluids down
- Fever above 103°F
Frequently asked questions
Which withdrawal is most dangerous?
Alcohol and benzodiazepine withdrawal are the most medically dangerous and can be fatal without treatment. Opioid withdrawal is extremely uncomfortable but rarely fatal in healthy adults.
Can withdrawal be managed at home?
Mild withdrawal from some substances can be managed at home with medical guidance. However, alcohol, benzodiazepine, and severe opioid withdrawal should always be managed in a medical setting.