Withdrawal can occur when your body has adapted to regular substance use and you suddenly reduce or stop using it.
How quickly symptoms begin and how long they last depends on the substance, your pattern of use, and your overall health. Alcohol, benzodiazepine, and opioid withdrawal also carry different risks, making professional assessment important before attempting detox.
What Can Affect Withdrawal Timelines?
There is no single withdrawal timeline that applies to everyone. Symptoms may be affected by:
- The substance you use
- How long and frequently you’ve used it
- The amount you typically use
- Whether the drug is short- or long-acting
- Other substances or medications you use
- Your physical and mental health
- Previous withdrawal experiences
Your withdrawal symptoms may begin within hours of your last dose or take longer to appear, depending on these factors.
What Is the Alcohol Withdrawal Timeline?
Alcohol withdrawal can begin within hours after your last drink. Symptoms can range from mild discomfort to potentially life-threatening complications.
First 6–12 Hours
Early symptoms may include anxiety, shaking, sweating, headache, nausea, insomnia, and increased heart rate.
12–24 Hours
Symptoms may become more intense during the first day. Some people experience hallucinations or other perceptual disturbances.
24–72 Hours
Severe complications, including seizures and alcohol withdrawal delirium, can occur during this period. People at risk for severe withdrawal require appropriate medical monitoring and treatment.
After 72 Hours
Many acute symptoms begin improving within several days. Sleep disturbances, fatigue, mood changes, and other symptoms may continue longer for some people.
Alcohol withdrawal can become dangerous, so don’t rely on a timeline alone to determine whether you can safely detox without medical support.
What Is the Benzodiazepine Withdrawal Timeline?
Benzodiazepines include medications such as Xanax, Ativan, and Valium. Withdrawal timelines vary considerably because some benzodiazepines leave the body much faster than others.
Benzodiazepine withdrawal varies depending partly on whether you use a short-acting or long-acting medication.
1–2 Days After the Last Dose
Withdrawal from shorter-acting benzodiazepines, such as Xanax (alprazolam), may begin within one or two days. Early symptoms can include anxiety, insomnia, restlessness, irritability, difficulty concentrating, and muscle tension.
2–7 Days After the Last Dose
Longer-acting benzodiazepines, such as Valium (diazepam), may take several days to produce withdrawal symptoms because they remain in the body longer.
Following Weeks
Withdrawal from short-acting benzodiazepines may continue for two to four weeks or longer. Symptoms from long-acting benzodiazepines may last two to eight weeks or longer.
Some people experience persistent symptoms beyond the initial withdrawal period. The timeline can vary considerably based on the medication, dose, length of use, and individual response.
Benzodiazepine withdrawal can also cause serious complications, including seizures. People who have developed physical dependence generally should not abruptly stop taking benzodiazepines. A healthcare provider can develop a gradual taper based on your symptoms and response.
What Is the Opioid Withdrawal Timeline?
Opioid withdrawal happens when people are detoxing from opioids such as hydrocodone (Vicodine) or oxycodone (Percocet). This timeline also varies based on the specific drug. Short-acting opioids generally produce symptoms sooner than longer-acting opioids.
First Several Hours to a Day
Early symptoms can include anxiety, restlessness, muscle aches, sweating, yawning, runny nose, and difficulty sleeping.
Days 1–3
Symptoms may become more intense. Nausea, vomiting, diarrhea, abdominal cramps, chills, insomnia, and strong cravings can occur.
Days 4–7
Many acute physical symptoms gradually begin improving, although everyone’s experience is different.
Following Weeks
Some people continue experiencing sleep problems, fatigue, mood changes, or cravings after the most intense physical symptoms have passed.
Is Opioid Withdrawal Dangerous?
Opioid withdrawal is generally less likely to cause life-threatening complications than severe alcohol or benzodiazepine withdrawal, but that doesn’t mean detoxing without medical guidance is risk-free.
Vomiting and diarrhea can cause dehydration, and underlying health conditions may increase risks.
There is also an important danger after withdrawal. Your opioid tolerance can decrease, meaning returning to a dose you previously used can increase your risk of overdose.
Why Is Medical Detox Safer?
Professional withdrawal management allows healthcare providers to evaluate your risks and monitor your symptoms throughout detox.
Depending on the substance and your needs, treatment may include medications, symptom management, medical monitoring, and support for hydration, nutrition, and emotional well-being.
A clinical assessment can also determine whether outpatient detox is appropriate or whether you need a higher level of medical supervision.
What Happens After Detox?
Detox helps your body safely adjust to reducing or stopping a substance, but it doesn’t address every part of addiction.
Ongoing treatment can help you understand substance use patterns, identify triggers, develop coping skills, address co-occurring mental health conditions, and create strategies for preventing relapse.
Moving directly from detox into continued addiction treatment can help you begin building those skills while receiving professional support.
Find Outpatient Detox in New Jersey at Harmony Healing Center
Harmony Healing Center in Cherry Hill provides outpatient addiction treatment for people who don’t require 24-hour inpatient monitoring.
Our team can assess your needs and determine which services and level of care are appropriate. Treatment options include partial hospitalization, intensive outpatient and outpatient programs, medication-assisted treatment, and support for co-occurring mental health conditions.
If you’re concerned about withdrawal from alcohol, benzodiazepines, opioids, or another substance, don’t assume you have to manage it alone.
Contact Harmony Healing Center today to schedule an assessment and learn more about addiction treatment in New Jersey.
FAQs About Withdrawal Timelines for Drugs and Alcohol
Which types of withdrawal are most dangerous?
Alcohol and benzodiazepine withdrawal can cause potentially life-threatening complications, including seizures. Medical assessment can help determine your risks and the appropriate setting for withdrawal management.
Can I detox at home?
Whether outpatient or at-home withdrawal management is appropriate depends on the substance, symptom severity, health history, and other risk factors. Talk to a healthcare professional before attempting to detox on your own.
How soon should addiction treatment begin after detox?
Detox should generally be followed by ongoing addiction treatment rather than treated as the end of recovery. Continuing care can address the behaviors, triggers, mental health concerns, and other factors involved in substance use.
Sources
- American Society of Addiction Medicine. The ASAM Clinical Practice Guideline on Alcohol Withdrawal Management. Retrieved from: https://www.asam.org/quality-care/clinical-guidelines/alcohol-withdrawal-management-guideline. Accessed on October 27, 2026.
- American Society of Addiction Medicine. Benzodiazepine Tapering. Retrieved from: https://www.asam.org/quality-care/clinical-guidelines/benzodiazepine-tapering. Accessed on October 27, 2026.
- Substance Abuse and Mental Health Services Administration. Medications for Opioid Use Disorder: Opioid Withdrawal. Retrieved from: https://www.ncbi.nlm.nih.gov/sites/books/NBK574912/table/p2.t3/. Accessed on October 27, 2026.
- World Health Organization. Clinical Guidelines for Withdrawal Management and Treatment of Drug Dependence in Closed Settings: Withdrawal Management for Benzodiazepine Dependence. Retrieved from: https://www.ncbi.nlm.nih.gov/books/NBK310652/. Accessed on October 27, 2026.