Benzodiazepine Withdrawal: Why You Should Never Stop Cold Turkey, and What a Safe Taper Looks Like

✓ Medically reviewed by Dr. David T. Gigliotti, DO, FASAM, Medical Director · Reviewed October 16, 2026

Benzodiazepine withdrawal usually begins one to two days after the last dose of a shorter-acting drug like alprazolam (Xanax) and two to seven days after the last dose of a longer-acting drug like diazepam (Valium), and the acute phase usually runs two to eight weeks depending on the drug (WHO, NCBI Bookshelf). Stopping suddenly is dangerous. The FDA warns that stopping benzodiazepines abruptly or reducing the dose too rapidly “can result in withdrawal reactions, including seizures,” and that these reactions can be life-threatening (FDA, 2020). The safe way off is a gradual taper planned and adjusted by a physician, and slow is normal.

First, what Ripple is and is not. Ripple Recovery Centers runs outpatient programs in Barrington and Cherry Hill, in Camden County: a partial hospitalization program (PHP), an intensive outpatient program (IOP) and a standard outpatient program (OP). There are no overnight stays and no detox on site. When an assessment shows benzodiazepine dependence that needs medical withdrawal management, we arrange placement with trusted medical detox partners first, and outpatient care continues afterward alongside the taper plan set by the prescribing physician. If someone is having a seizure, has stopped breathing or will not wake up, call 911. If you are thinking about suicide, call or text 988. Do not try to detox from benzodiazepines at home.

What is benzodiazepine withdrawal, and why does it happen?

Benzodiazepines are “a type of prescription sedative commonly prescribed for anxiety or to help with insomnia,” and they work by raising the level of GABA, the brain’s main calming chemical (NIDA). With steady use the brain adapts. That is physical dependence, and it is not the same thing as addiction. The FDA says dependence “can occur when benzodiazepines are taken steadily for several days to weeks, even as prescribed” (FDA, 2020). The 2025 joint clinical practice guideline on benzodiazepine tapering, led by the American Society of Addiction Medicine and funded by the FDA, is blunter: nearly all patients who take a benzodiazepine regularly for more than a month develop physical dependence, while only about 1.5 percent develop a use disorder (ASAM, March 2025). Withdrawal is what happens when a dependent brain loses the drug sooner than it can readjust.

What are the symptoms of benzodiazepine withdrawal?

The common symptoms are anxiety, insomnia, restlessness, agitation and irritability, poor concentration and memory, and muscle tension and aches, and WHO notes they “tend to be subjective, with few observable signs” (WHO, NCBI Bookshelf). A person can be in real withdrawal and look fine to a family member. The DEA adds tremors and seizures, and says severity “is dependent on the dose, duration of use, and drug used” (DEA, 2019). The FDA’s 2020 review describes life-threatening reactions including seizures, catatonia, suicidal thinking and delirium (Indian Health Service, 2020).

How long does benzo withdrawal last?

The answer has three parts: an onset window, an acute phase, and for some people a protracted phase. The onset and acute ranges in the table below come from the WHO withdrawal management guideline (WHO, NCBI Bookshelf). Charts online promise a peak at hour 36 or day 3. We could not find a primary source that pins a peak day for each drug, so we do not print one.

The protracted phase is real and underreported. The FDA defines it as symptoms that persist beyond 4 to 6 weeks after the initial withdrawal and says they “may last weeks to as long as 12 months” (FDA, 2020). The Valium, Ativan, Klonopin and Xanax labels each say protracted symptoms may last weeks to more than 12 months (FDA-approved Valium label). Anyone who tells you it is over in two weeks for everyone has not read the label.

Why do short-acting and long-acting benzodiazepines feel different coming off?

Half-life is the time the body takes to clear half of a dose. A short half-life means withdrawal starts sooner and can hit harder between doses. A long half-life means the drug and its breakdown products linger, so withdrawal starts later and stretches out. The WHO guideline names alprazolam as short-acting and diazepam as long-acting; we place lorazepam and clonazepam using the half-lives on their FDA labels.

Group	Examples (generic, brand)	Half-life	Withdrawal usually begins	Acute phase usually lasts
Shorter-acting	Alprazolam (Xanax); lorazepam (Ativan)	Alprazolam about 11.2 hours, range 6.3 to 26.9 (FDA-approved Xanax label); lorazepam about 12 hours (FDA-approved Ativan label)	1 to 2 days (WHO)	2 to 4 weeks or longer (WHO)
Longer-acting	Diazepam (Valium); clonazepam (Klonopin)	Diazepam up to 48 hours, active breakdown product up to 100 hours (FDA-approved Valium label); clonazepam typically 30 to 40 hours (FDA-approved Klonopin label)	2 to 7 days (WHO)	2 to 8 weeks or longer (WHO)

This is why clinicians often move a person from a short-acting drug to a long-acting one before tapering; the American Family Physician review says the switch “may allow for a smoother taper experience” (American Family Physician, 2017).

Can you die from benzo withdrawal?

Yes, it is possible, and the people saying so are the FDA and the drug makers, not us. The boxed warning on Ativan states that abrupt discontinuation or rapid dose reduction after continued use “may precipitate acute withdrawal reactions, including seizures, which can be life-threatening” (FDA-approved Ativan label). The Valium, Xanax and Klonopin labels carry the same boxed warning (FDA-approved Klonopin label). New Jersey’s Department of Health says it plainly: benzodiazepines “can cause withdrawal symptoms if stopped abruptly,” and “withdrawal can be life threatening” (NJ Department of Health). The WHO guideline says giving benzodiazepines in gradually decreasing amounts “helps to relieve benzodiazepine withdrawal symptoms and prevent the development of seizures” (WHO, NCBI Bookshelf). A seizure can happen at home, in a car or alone. That is the whole argument against cold turkey.

What does a safe benzodiazepine taper look like?

A taper is a planned series of small dose reductions, each held long enough for the brain to adjust before the next one. The 2025 joint guideline recommends starting with “a 5-10% reduction in total daily dose every 2-4 weeks” and adjusting the pace to how the patient responds (ASAM, June 2025). The WHO guideline leaves at least one week between reductions and advises against raising the dose again when symptoms flare (WHO, NCBI Bookshelf). The Xanax label is specific: “decrease dosage by no more than 0.5 mg every 3 days,” and some patients “may benefit from an even more gradual discontinuation” (FDA-approved Xanax label).

Do the math and you get months, not days. The American Family Physician review notes that “even benzodiazepine tapers lasting one to two years can be successful” (American Family Physician, 2017). The guideline authors also describe what a rushed taper risks: severe and protracted withdrawal, worsening of the condition the drug was treating, and patients turning to the illicit market, where fentanyl contamination is a danger (ASAM, March 2025). We have seen that last one in South Jersey more than once.

Who oversees a taper, and where does detox fit?

A taper is prescribed and adjusted by a physician or another licensed prescriber, because it is medical treatment. MedlinePlus tells every alprazolam patient: “Do not stop taking this medication or take fewer doses without talking to your doctor,” and “your doctor probably will decrease your alprazolam dose gradually” (MedlinePlus). The clonazepam page carries the same instruction (MedlinePlus).

Where the taper happens depends on the assessment. Someone on a high dose, with a seizure history, drinking heavily, or using fentanyl alongside benzodiazepines usually needs medical withdrawal management in a setting with nursing and monitoring. At Ripple, when the assessment points there, we arrange placement with trusted medical detox partners first; outpatient care picks up after that stay, and the taper plan written by the prescribing physician continues alongside PHP, IOP or OP. For how that handoff works, read what detox placement means and what happens next. Someone on a lower dose with no complicating factors may taper with their own prescriber while attending an outpatient program.

Why are benzodiazepines and fentanyl such a dangerous mix?

Because both drugs “can cause sedation and suppress breathing” (NIDA). In 2016 the FDA put boxed warnings on both opioids and benzodiazepines because combining them “can result in extreme sleepiness, slowed or difficult breathing, coma, or death” (FDA, 2016). In 2021, nearly 14 percent of opioid-involved overdose deaths also involved benzodiazepines (NIDA), and a CDC analysis of 2020 data found that 92.7 percent of benzodiazepine-involved overdose deaths also involved opioids, 66.7 percent of them illicitly manufactured fentanyl (CDC MMWR, 2021).

On their own, benzodiazepines rarely kill. StatPearls notes that “respiratory compromise is uncommon in isolated benzodiazepine ingestions,” while mixing them with alcohol, opioids or other sedatives carries “a risk of morbidity and even death” (StatPearls, NCBI Bookshelf). NIAAA says “combining alcohol and benzodiazepines can increase the likelihood of death due to respiratory depression” (NIAAA). New Jersey’s benzodiazepine flyer warns that counterfeit pressed pills may contain fentanyl or a potent illicit benzodiazepine called bromazolam (NJ Department of Health). If your pills come from anywhere other than a pharmacy, tell the assessing clinician. It changes the plan.

Where we stand

We take three positions.

First, abrupt discontinuation is dangerous, and any program that tells a dependent patient to “just stop” is practicing outside the evidence. The FDA’s boxed warning requires a gradual taper to reduce the risk of withdrawal reactions, including seizures (FDA, 2020). A program that ignores a boxed warning is not being tough. It is being careless with someone’s life.

Second, a taper is medical treatment, slow is normal, and the timelines sold online are fiction. The 2025 guideline’s starting pace is 5 to 10 percent every two to four weeks (ASAM, June 2025), and tapers lasting a year or more can succeed (American Family Physician, 2017). A page that promises you will be done in 14 days is selling a bed, not describing medicine.

Third, benzodiazepines prescribed for anxiety are not the enemy. Dependence is. Nearly everyone who takes one daily for more than a month becomes physically dependent, and only a small share develop a use disorder (ASAM, March 2025). Shaming a person for a prescription their doctor wrote keeps them from asking for help, and the help they need is a slower plan, not a lecture. We treat the anxiety and the dependence together.

At Ripple

Ripple Recovery Centers is licensed by the State of New Jersey and runs outpatient treatment at two Camden County locations, 630 Clements Bridge Road in Barrington and 103 East Gate Drive in Cherry Hill. We offer three levels of care: a partial hospitalization program that runs six hours a day, an intensive outpatient program, and a standard outpatient program. Physicians at both locations provide medication-assisted treatment, and which medications fit, if any, is their decision after an assessment. We do not run detox or inpatient withdrawal management. When an assessment shows benzodiazepine dependence that needs medical withdrawal management, we arrange placement with trusted medical detox partners first, and outpatient care continues afterward alongside the taper plan set by the prescribing physician. Our clinicians treat the anxiety, depression and trauma that so often sit underneath benzodiazepine use. Ripple works with many major insurance plans. Coverage depends on your plan, and our admissions team confirms your benefits before you start. Verify your insurance or Start admissions.

Getting to Ripple from Camden County and South Jersey

Our Barrington office sits on Clements Bridge Road between the White Horse Pike (Route 30) and I-295. Our Cherry Hill office is on East Gate Drive off Marlton Pike East (Route 70), just east of I-295. People drive in from Haddon Heights, Runnemede, Bellmawr, Haddonfield, Collingswood, Voorhees, Pennsauken, Maple Shade, Marlton, Gloucester City and Camden, and from Philadelphia over the Ben Franklin or Walt Whitman Bridge. Camden County reported 206 suspected drug deaths in 2024, down from 327 in 2023 (Camden County, February 2025), and New Jersey reported more than 2,800 overdose deaths statewide in 2023 (NJ Department of Health, August 2025). In the most recent county toxicology breakdown the state medical examiner has published, benzodiazepines were present in 60 of Camden County’s 295 drug-related deaths in 2021, about one in five (NJ Office of the Chief State Medical Examiner). If you need help now, ReachNJ at 1-844-732-2465 and the SAMHSA National Helpline at 1-800-662-4357 are free and confidential.

Frequently asked questions

Ready for the next step? See how admissions works at Ripple, or verify your insurance first.

Sources

1. FDA Drug Safety Communication, “FDA requiring Boxed Warning updated to improve safe use of benzodiazepine drug class,” September 23, 2020
2. FDA Drug Safety Communication, “FDA warns about serious risks and death when combining opioid pain or cough medicines with benzodiazepines,” August 31, 2016
3. American Society of Addiction Medicine, “New Guideline on Benzodiazepine Tapering,” March 3, 2025
4. American Society of Addiction Medicine, “New Benzodiazepine Tapering Guideline Emphasizes Patient-Centered Approach,” June 17, 2025
5. World Health Organization, “Clinical Guidelines for Withdrawal Management and Treatment of Drug Dependence in Closed Settings,” Chapter 4, on NCBI Bookshelf
6. NIDA, “Benzodiazepines and Opioids”
7. NIAAA, “Alcohol-Medication Interactions: Potentially Dangerous Mixes”
8. CDC MMWR, “Trends in Nonfatal and Fatal Overdoses Involving Benzodiazepines, 38 States and the District of Columbia, 2019 to 2020,” August 27, 2021
9. Xanax (alprazolam) prescribing information, revised March 2021
10. Valium (diazepam) prescribing information, FDA
11. Klonopin (clonazepam) prescribing information, FDA FDALabel
12. Ativan (lorazepam) prescribing information, FDA
13. MedlinePlus, “Alprazolam”
14. MedlinePlus, “Clonazepam”
15. MedlinePlus, “Diazepam”
16. StatPearls, “Benzodiazepine Toxicity,” NCBI Bookshelf, updated June 2023
17. StatPearls, “Benzodiazepines,” NCBI Bookshelf, updated January 2024
18. Indian Health Service, “New Boxed Warning for Benzodiazepines,” September 23, 2020
19. DEA Diversion Control Division, “Benzodiazepines,” December 2019
20. American Family Physician, “Tapering Patients Off of Benzodiazepines,” 2017
21. New Jersey Department of Health, “Benzodiazepines: What Are They?” flyer
22. New Jersey Office of the Chief State Medical Examiner, “2021 NJ Drug Related Deaths by County”
23. Camden County, “Camden County saw significant reduction in overdose rates in 2024,” February 10, 2025
24. New Jersey Department of Health news release, August 29, 2025