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Overview of Lorazepam Uses and Effects
Apr 25, 2025
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About Lorazepam
Introduction
Lorazepam
is a medicine classified under benzodiazepines.
Brand name:
Ativan
.
Primarily used to treat:
Anxiety
Sleeping problems related to anxiety
Used as a pre-med to help relax before:
Operations
Medical or dental treatments
Functions by increasing levels of gamma-aminobutyric acid (
GABA
), a calming chemical in the brain.
Availability and Administration
Available by prescription only.
Comes in forms of:
Tablets
Liquid for oral consumption
Administered as an injection in hospitals for seizures or fits.
Key Facts
Onset and Duration
:
Tablets and liquid take effect in 20-30 minutes.
Full sedating effect lasts 6-8 hours.
Common Side Effect
:
Daytime drowsiness.
Usage Recommendations
:
Not advised for use longer than 4 weeks.
Avoid driving, biking, or operating tools/machinery if drowsy.
Avoid alcohol; can cause deep sleep, breathing problems, and difficulty waking.
Additional Information
For more information, refer to further sections on:
Who can and cannot take lorazepam.
How and when to take it.
Side effects.
Considerations during pregnancy, breastfeeding, and for fertility.
Interactions with other medicines and supplements.
Common questions about lorazepam.
Reviews and Updates
Last Reviewed: 14 February 2023
Next Review Due: 14 February 2026
Additional Support Links
For further support, explore links related to:
NHS Home
Health A to Z
Live Well
Mental Health
Care and Support
Pregnancy
NHS Services
COVID-19
NHS App
And more related services and policies.
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View note source
https://www.nhs.uk/medicines/lorazepam/about-lorazepam/