Levels of Care
The Detox Timeline: What to Expect Day by Day
Published Feb 14, 2026 · Updated Jul 8, 2026
Detox timelines vary by substance and person, but knowing the general arc helps take away the fear. Here's what to expect — always under medical supervision.
Alcohol withdrawal (general)
- 6–12 hours: anxiety, shakiness, sweating begin.
- 24–72 hours: symptoms peak; this window carries the highest medical risk, which is why supervision matters.
- 5–7 days: acute symptoms ease and stabilize.
Opioid withdrawal (general)
- 8–24 hours: early symptoms — restlessness, aches, cravings.
- Days 1–3: symptoms peak; flu-like and intense but rarely life-threatening with support.
- Days 4–7: physical symptoms subside.
An important caution
Alcohol and benzodiazepine withdrawal can be medically dangerous — never attempt them alone. Medical detox provides monitoring and medication to keep you safe and far more comfortable.
After the acute phase
Some symptoms (sleep, mood, cravings) can linger for weeks as post-acute withdrawal. That's normal and manageable — and exactly why continuing into treatment matters.
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- NIAAA — Understanding Alcohol Use Disorder
- MedlinePlus — Opioids and Opioid Use Disorder (OUD)
- National Institute on Drug Abuse (NIDA) — Treatment and Recovery
These trusted, publicly available sources informed this article. Reform Recovery Center is not affiliated with and does not endorse these organizations; links are provided for educational reference.
This article is educational and is not medical advice or a substitute for professional care. If you or someone you love is in immediate danger, call 911. For emotional crisis or suicide support, call or text 988, 24/7.