How Long Does Opioid Withdrawal Last?
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Understanding the opioid withdrawal timeline is one of the most practical things a person can know before starting recovery. Not because withdrawal is pleasant — it is not — but because knowing what to expect transforms an unknown into something you can plan for.
The answer depends on which opioid you have been using, how long, and at what dose. Here is what the clinical evidence shows — and how medication-assisted treatment changes the timeline significantly.
Acute Withdrawal Timeline by Opioid Type
Withdrawal Symptom Phases
Opioid withdrawal follows a predictable clinical pattern:
- Early phase (hrs 6-24): yawning, tearing, runny nose, anxiety, restlessness, muscle aches, mild sweating
- Peak phase (24-72 hrs): nausea, vomiting, diarrhea, abdominal cramping, elevated blood pressure and heart rate, severe diaphoresis, intense cravings, insomnia
- Resolving phase (days 4-10): gradual symptom reduction, persistent fatigue, sleep disruption, dysphoria, cravings
The Clinical Opiate Withdrawal Scale (COWS) is used to measure severity objectively and guide medication decisions at each stage.
What Is PAWS and Why Does It Drive Relapse?
Post-Acute Withdrawal Syndrome (PAWS) is the prolonged neurological adjustment following acute withdrawal. PAWS can persist for weeks to months — and in long-term heavy users, up to two years.
PAWS symptoms include:
- Persistent anxiety and emotional instability
- Depression and anhedonia — inability to feel pleasure
- Sleep disruption — difficulty initiating or maintaining sleep
- Cognitive difficulties — poor concentration and memory
- Intense episodic cravings triggered by stress or environmental cues
PAWS is one of the most significant relapse drivers in early recovery — particularly in the 30 to 90 day window when acute symptoms have resolved but neurological normalization is incomplete. Structured clinical support through IOP or PHP during this period is strongly protective.
How MAT Changes the Withdrawal Timeline
Medication-assisted treatment with buprenorphine or methadone fundamentally changes the withdrawal experience:
- Buprenorphine suppresses acute withdrawal within hours of first dose — preventing peak severity for most clients
- Methadone eliminates acute withdrawal entirely for stable dosing clients
- Both suppress PAWS cravings and emotional dysregulation throughout recovery
- Both reduce overdose mortality by up to 50% — critical because tolerance loss post-withdrawal makes relapse potentially fatal
At Bold Recovery in Virginia, MAT is integrated into IOP and PHP programming. You do not need to endure unmanaged withdrawal as a prerequisite for treatment.
Take the First Step Today
If you’re ready to explore your options — or just want to ask questions — reach out today. We’ll guide you with clarity, compassion, and confidence.
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or message us directly through our website
You don’t have to figure this out alone. Let’s take the next step — together.
- SAMHSA. (2023). Medications for Opioid Use Disorder. TIP Series No. 63. Rockville, MD.
- Wesson, D.R. & Ling, W. (2003). The Clinical Opiate Withdrawal Scale (COWS). Journal of Psychoactive Drugs, 35(2), 253-259.
- Sordo, L. et al. (2017). Mortality risk during and after opioid substitution treatment. BMJ, 357, j1550.
- American Society of Addiction Medicine (ASAM). (2023). The ASAM Criteria: Treatment Criteria for Addictive, Substance-Related, and Co-Occurring Conditions. 4th ed.
- Kosten, T.R. & O'Connor, P.G. (2003). Management of drug and alcohol withdrawal. NEJM, 348(18), 1786-1795.
- NIDA. (2024). Opioid Withdrawal: Symptoms, Timeline, and Treatment. Drug Facts. NIH.
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