Quick answer: Ativan (lorazepam) withdrawal often starts within 1 to 2 days of the last dose, sometimes sooner, and the acute phase usually lasts one to several weeks. Common symptoms are rebound anxiety, insomnia, irritability, tremor, sweating and a racing heart. Unlike most drug withdrawals, stopping a benzodiazepine suddenly can cause seizures, which can be life-threatening. The FDA warns that physical dependence can develop even when the medication is taken as prescribed. Do not stop or cut down Ativan on your own. A doctor should plan a gradual taper.
Call 911 or go to an emergency room if you or someone with you:
- Has a seizure, or has had one during a previous withdrawal
- Is confused, disoriented, or seeing or hearing things that are not there
- Has a high fever, severe agitation, or a very fast heartbeat
- Stops responding normally, or freezes in place and cannot move or speak
- Is thinking about suicide: call or text 988 (Suicide & Crisis Lifeline)
If Ativan has been mixed with opioids or alcohol and someone is very drowsy or breathing slowly, call 911 and give naloxone if you have it.
What is Ativan, and why does stopping it cause withdrawal?
Ativan is the brand name for lorazepam, a benzodiazepine prescribed for anxiety, insomnia, seizures and, in hospitals, for alcohol withdrawal. It works by boosting GABA, the brain’s main calming signal.
When lorazepam is taken regularly, the brain adapts by turning down its own calming system and turning up its excitatory one. Remove the drug quickly and the brain is left over-excited. That is why benzodiazepine withdrawal looks like the opposite of the drug’s effect: anxiety instead of calm, insomnia instead of sleep, and in severe cases seizures instead of seizure protection.
Lorazepam leaves the body faster than long-acting benzodiazepines such as diazepam (Valium), so withdrawal tends to start sooner and can feel more abrupt.
Who can develop Ativan dependence?
Anyone who takes it regularly. The FDA’s 2020 boxed warning for all benzodiazepines states that physical dependence can develop after days to weeks of steady use, including at prescribed doses. Dependence is a physical adaptation. It does not mean someone misused their prescription. The risk is higher with:
- Daily use for more than a few weeks
- Higher doses, or doses taken several times a day
- Taking more than prescribed, or using pills from someone else
- Using alcohol, opioids or other sedatives at the same time
- A history of substance use
Ativan withdrawal timeline
Everyone is different. Dose, length of use, taper speed, age, health and other substances all change the picture.
| Stage | What is common |
|---|---|
| Early (often within 1–2 days) | Rebound anxiety and insomnia, often worse than before treatment began. Restlessness, irritability, tension. |
| Acute (first 1–2 weeks, sometimes longer) | Tremor, sweating, racing heart, nausea, headache, muscle stiffness, poor concentration, sensitivity to light and sound, panic. The highest seizure risk is when the drug is stopped abruptly after regular use. |
| Protracted (weeks to months) | Some people have lingering anxiety, insomnia, low mood, tingling or muscle symptoms. The FDA notes these can last from weeks to as long as 12 months in some cases. They usually come and go and gradually fade. |
Ativan withdrawal symptoms
Common
- Anxiety, panic and irritability
- Insomnia and vivid dreams
- Tremor, sweating, racing heart
- Headache, muscle tension and aches
- Nausea and reduced appetite
- Trouble concentrating and memory problems
- Sensitivity to light, sound or touch
- Feeling detached or unreal
Severe (medical emergency)
- Seizures
- Delirium or confusion
- Hallucinations or psychosis
- Catatonia (unable to move or respond)
- Suicidal thoughts
Why you should not stop Ativan cold turkey
Alcohol and benzodiazepines are among the few substances whose withdrawal can be fatal. The FDA warns that stopping benzodiazepines suddenly or reducing the dose too quickly can cause withdrawal reactions, including seizures, which can be life-threatening.
The safer approach is a gradual taper planned by a prescriber. The 2025 Joint Clinical Practice Guideline on Benzodiazepine Tapering, published with the American Society of Addiction Medicine, recommends starting slowly and adjusting the pace to how each person responds, rather than following one fixed schedule. Some people need months. We do not publish taper schedules or doses, because the right plan depends on the individual.
Also avoid:
- Using alcohol to take the edge off. It adds to the risk rather than replacing it.
- Taking someone else’s benzodiazepines, gabapentin or sleeping pills to manage symptoms.
- Buying “Xanax” or other pills outside a pharmacy. Counterfeit pills often contain fentanyl.
When inpatient detox makes sense
Many people taper with their own prescriber as outpatients. Medically supervised detox is usually the safer setting if:
- You take high doses, or more than prescribed
- You also drink heavily or use opioids or other sedatives
- You have had a seizure, delirium or a very difficult withdrawal before
- Previous tapers have failed
- You have depression or thoughts of suicide
- You are older, or have significant medical conditions
- Home is not a stable or safe place to go through withdrawal
In medical detox, a physician stabilizes withdrawal, monitors for seizures and other complications around the clock, and treats symptoms. Benzodiazepine tapers often continue after a typical detox stay ends, so a good program plans what happens next: who continues the taper, how often you will be seen, and how anxiety and sleep will be treated without relying on the medication.
It may seem surprising, but lorazepam itself is one of the medications doctors use in medical detox for alcohol withdrawal, for a short time and under close monitoring. Used that way, it is a treatment. The problem is long, unsupervised use.
Medically supervised detox in San Clemente
Oceans Luxury Rehab is a six-bed, Joint Commission accredited detox and residential program in San Clemente, Orange County, under the medical direction of Mitchell Naficy, MD. Withdrawal is managed by our medical team, followed by residential care and a step-down plan. We can verify your insurance benefits right away, free and confidentially.
Call (844) 798-0516 · Verify your benefits · About our detox
Frequently asked questions
How long does Ativan withdrawal last?
Symptoms often begin within 1 to 2 days of the last dose. The acute phase usually lasts one to several weeks. Some people have milder, lingering symptoms such as anxiety and insomnia for weeks or months, which gradually fade.
Can you die from Ativan withdrawal?
Yes, it is possible. Stopping a benzodiazepine suddenly after regular use can cause seizures and delirium, which can be life-threatening. That is why Ativan should be tapered gradually under a doctor’s care rather than stopped all at once.
How long do you have to take Ativan to become dependent?
The FDA says physical dependence can develop after taking a benzodiazepine steadily for days to weeks, even at prescribed doses. The longer and higher the dose, the more likely and the more significant the dependence.
Is Ativan withdrawal worse than Xanax withdrawal?
Both are short- to intermediate-acting benzodiazepines, so withdrawal tends to start relatively quickly and can feel abrupt. Severity depends far more on dose, length of use and how fast the medication is stopped than on which of the two it is.
Does insurance cover benzodiazepine detox?
Many insurance plans cover medically necessary detox. Coverage depends on your plan. Our admissions team can check your benefits immediately at (844) 798-0516.
About this article. This article is general information, not medical advice. It draws on the FDA’s 2020 benzodiazepine Drug Safety Communication and boxed warning and on the 2025 Joint Clinical Practice Guideline on Benzodiazepine Tapering. Never stop or change a prescribed medication without talking to your prescriber. For free, confidential treatment referral 24/7, you can also call the SAMHSA National Helpline at 1-800-662-4357.
Sources
- U.S. Food and Drug Administration — FDA requiring Boxed Warning updated to improve safe use of benzodiazepine drug class, September 23, 2020 — fda.gov
- American Society of Addiction Medicine — New Guideline on Benzodiazepine Tapering (Joint Clinical Practice Guideline on Benzodiazepine Tapering), March 2025 — asam.org
- U.S. Food and Drug Administration — Ativan (lorazepam) prescribing information
