Guide
Ativan and Alcohol: Why Mixing Them Is Dangerous, and Whether Ativan Can Help You Quit Drinking
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Published October 21, 2026
Ativan, the brand name for lorazepam, comes up around alcohol in two very different ways. Some people take it for anxiety and wonder whether a drink on top is safe. Others have a few pills left over and wonder whether they could use them to get through quitting. Both questions have the same core answer: Ativan and alcohol slow the brain and breathing in the same way, and together they can be dangerous. This page explains why, which signs mean an emergency, and how Ativan is used safely, under supervision, in medical alcohol detox.
What happens if you mix Ativan and alcohol?
The two add together. Both slow the brain, so mixing them can cause heavy sleepiness, confusion, falls, blackouts and, at worst, breathing that slows enough to be fatal.
The Ativan label says it plainly. Lorazepam has a stronger effect on the brain when taken with alcohol. The label warns that the combination can slow breathing so much that it is fatal.
The label also warns that people taking lorazepam will have less tolerance for alcohol. A usual amount of drinking can hit much harder than expected.
Source: Ativan (lorazepam) tablets, prescribing information, Warnings and Precautions, DailyMed, National Library of Medicine.
Why is the combination so dangerous?
Because both drugs slow breathing, and the effects stack. The label notes that deaths involving benzodiazepines are more often tied to using them with other depressants, especially opioids and alcohol.
The label adds that misuse of these drugs often involves alcohol, and that this raises the risk of overdose and death.
Opioids raise the risk further. The FDA’s strongest warning for the whole drug class covers mixing it with opioids, which can cause deep sedation, coma and death.
Source: Ativan prescribing information, Drug Abuse and Dependence, DailyMed; FDA requiring Boxed Warning updated to improve safe use of benzodiazepine drug class, U.S. Food and Drug Administration.
When is it an emergency?
Call 911 if someone who has mixed Ativan and alcohol is very hard to wake, is breathing slowly or with difficulty, or does not respond. Do not let them sleep it off alone.
The National Library of Medicine lists the signs to act on right away: unusual dizziness, lightheadedness, extreme sleepiness, slowed or difficult breathing, and unresponsiveness. It says family members should know these signs, because the person may not be able to call for help themselves.
If opioids may also be involved, give naloxone if you have it while you wait for help. Naloxone reverses opioids, not Ativan or alcohol, but it can still save a life when opioids are part of the mix.
Source: Lorazepam, MedlinePlus Drug Information, National Library of Medicine.
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How long after drinking can you take Ativan?
Ask your prescriber before you take it. The safe gap depends on how much you drank, your health and why you take Ativan, so it is not something to work out alone.
Lorazepam’s half-life is about 12 hours, according to its label. That means half of a dose is still in the body half a day later, and it takes longer than that to clear. Alcohol also takes hours to leave the body, and longer after heavy drinking.
If the real question is “can I drink on this prescription?”, the National Library of Medicine’s advice is to talk to your doctor about alcohol during treatment. If you are drinking heavily enough that stopping makes you shaky or anxious, that is a sign of alcohol dependence, and it changes the plan.
Source: Ativan prescribing information, Clinical Pharmacology, DailyMed; Lorazepam, MedlinePlus.
Is Ativan used for alcohol withdrawal?
Yes, under medical supervision. Benzodiazepines are the standard treatment for alcohol withdrawal, and lorazepam is one of the options a detox team can choose.
The National Library of Medicine notes that lorazepam is sometimes used to control agitation caused by alcohol withdrawal. SAMHSA’s detoxification guidance adds why a team might choose it: older patients and people with severe liver disease tolerate it well, and it helps prevent a second withdrawal seizure.
What makes it safe in detox is the setting. Staff assess withdrawal before each decision and watch breathing and alertness around the clock. Above all, the person is no longer drinking. The alcohol withdrawal medications page explains how withdrawal medicines are chosen.
Source: Lorazepam, MedlinePlus; Physical Detoxification Services for Withdrawal From Specific Substances, TIP 45, Substance Abuse and Mental Health Services Administration.
Can you use leftover Ativan to quit drinking at home?
No. Using leftover Ativan to self-detox mixes the two most dangerous ways to stop drinking: guessing at a dose, and still having alcohol nearby. It also risks trading one dependence for another.
If you drink while trying it, you are back to the dangerous mix above. If you take more to feel better, the risk of too much sedation climbs. And Ativan causes its own dependence, so a home “taper” can leave you needing both.
The American Society of Addiction Medicine’s withdrawal guideline treats benzodiazepine use on top of heavy drinking as a reason for closer monitoring, not detox at home. The alcohol and benzodiazepine cross-tolerance page explains why the two mask each other, and the Librium and alcohol page covers the same questions for another detox medicine.
Source: The ASAM Clinical Practice Guideline on Alcohol Withdrawal Management, Table 2, 2020.
Where can you detox safely from alcohol and Ativan?
In a medical detox where staff watch you through the night, if you drink heavily, take benzodiazepines too, or have had a withdrawal seizure. Briarwood’s inpatient centers in Austin and Houston are set up for exactly that.
At those centers a nurse is on site 24 hours a day, a physician is on call, and vital signs are checked every four hours for the first 72 hours. The medical team chooses and adjusts any withdrawal medicine. Briarwood’s San Antonio location offers outpatient detox for mild to moderate withdrawal, with no seizure history.
Admissions answers at every hour. Tell them about every medicine you take, including Ativan, on the first call.
Common Questions
Can you drink alcohol while taking Ativan?+–
It is not safe to combine them. The Ativan label says alcohol increases its effects on the brain, and the combination can slow breathing to a dangerous level. Talk to your prescriber before drinking any alcohol.
What happens if you take Ativan after drinking?+–
The two add together, causing heavy sleepiness, confusion and, at worst, dangerously slow breathing. Call 911 if someone is hard to wake or breathing slowly.
How long does Ativan stay in your system?+–
Lorazepam's half-life is about 12 hours, so half a dose remains half a day later, and it takes longer than that to clear completely.
Is Ativan used in alcohol detox?+–
Yes, under medical supervision. Benzodiazepines are the standard treatment for alcohol withdrawal, and lorazepam is one option a detox team may choose, with breathing and alertness watched around the clock.
Can I use Ativan to stop drinking on my own?+–
No. Using leftover Ativan to quit risks the dangerous mix with alcohol, too much sedation and a new dependence. A medical detox is the safe way.
What are the signs of an Ativan and alcohol overdose?+–
Extreme sleepiness, slowed or difficult breathing, unusual dizziness and not responding. Call 911, and give naloxone if opioids might also be involved.
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About the people behind this guide
Anna-Grace Washington
Medical Content Writer
Anna-Grace Washington is a Medical Content Writer for Briarwood Detox Center. She holds a master’s degree in clinical psychology from the University of Texas and brings a strong understanding of behavioral health, addiction recovery, and evidence-based treatment concepts to her writing.
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