Lorazepam
PrescriptionWhat is Lorazepam?
Lorazepam is a prescription medication that belongs to a class of drugs called benzodiazepines. It works on your brain and nervous system to produce a calming effect. Doctors prescribe it to treat anxiety disorders and other conditions that cause excessive worry or tension.
This medication is also known by the brand name Ativan. It comes in tablet form and as an injectable solution for hospital use. Lorazepam is a controlled substance because it has potential for dependence, meaning your body can become used to it over time.
You need a prescription from a licensed healthcare provider to get lorazepam. Your doctor will determine if this medication is right for your specific situation. Never share lorazepam with others, even if they have similar symptoms.
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Common uses
- Treatment of anxiety disorders including generalized anxiety disorder
- Short-term relief of anxiety symptoms or anxiety related to depression
- Management of panic attacks and panic disorder
- Treatment of insomnia related to anxiety or stress
- Preoperative sedation to reduce anxiety before surgery
- Management of seizures in hospital settings
- Relief of nausea and vomiting during chemotherapy when combined with other medications
How it works
Lorazepam works by increasing the activity of a natural chemical in your brain called GABA, which stands for gamma-aminobutyric acid. GABA is a neurotransmitter that sends messages between brain cells. When GABA levels increase, it slows down activity in your nervous system and creates a calming effect.
This calming action helps reduce feelings of anxiety, tension, and nervousness. It also relaxes your muscles and can make you feel sleepy. Lorazepam works quickly, usually within 30 to 60 minutes after you take it. The effects typically last 6 to 8 hours, making it useful for both immediate relief and ongoing management of anxiety symptoms.
Taking Lorazepam? Monitor your levels.
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Dosage information
Typical doses for adults range from 0.5 mg to 2 mg taken 2 to 3 times daily. The maximum daily dose is usually 10 mg. Your doctor will start you on the lowest effective dose and adjust based on your response. For anxiety, doses typically range from 2 mg to 6 mg per day divided into multiple doses. For insomnia, a single bedtime dose of 2 mg to 4 mg is common. Your healthcare provider will determine your specific dose based on your condition, age, and other factors. Never adjust your dose without consulting your doctor first.
Side effects
- Drowsiness and sedation
- Dizziness or lightheadedness
- Weakness or fatigue
- Unsteadiness or coordination problems
- Memory problems or difficulty concentrating
- Headache
- Blurred vision
- Sleep disturbances or changes in sleep patterns
- Nausea or changes in appetite
Serious side effects require immediate medical attention. These include severe drowsiness, slow or shallow breathing, confusion, mood changes, depression, thoughts of self-harm, hallucinations, or unusual behavior. Allergic reactions with rash, itching, swelling, or difficulty breathing also require emergency care. Long-term use can lead to physical dependence. Stopping suddenly after prolonged use may cause withdrawal symptoms including seizures.
Drug interactions
- Opioid pain medications like oxycodone or hydrocodone increase risk of severe sedation and breathing problems
- Alcohol increases drowsiness and can cause dangerous slowing of breathing
- Other sedatives including sleeping pills, muscle relaxants, and other benzodiazepines
- Antihistamines like diphenhydramine can increase drowsiness
- Antidepressants and antipsychotic medications may interact with lorazepam
- Probenecid can increase lorazepam levels in your blood
- Valproate can increase lorazepam levels and effects
- Birth control pills may slow down how your body processes lorazepam
- Avoid grapefruit juice as it may affect how lorazepam works
- Tell your doctor about all medications, vitamins, and herbal supplements you take
Blood test monitoring
Regular monitoring of liver function is important when taking lorazepam, especially during long-term use. Your liver breaks down this medication, so checking liver enzymes helps ensure your liver is working properly. Blood tests measuring ALT and AST levels can detect early signs of liver problems. Your doctor may also monitor your kidney function with creatinine tests, particularly if you are older or have existing kidney issues. Some healthcare providers check blood counts periodically during extended treatment. If you take lorazepam long-term, your doctor should regularly assess whether you still need the medication and evaluate for signs of dependence or tolerance.
Related blood tests
Taking Lorazepam? Monitor your levels.
- Track how your body responds
- Catch side effects early with blood work
- Share results with your doctor
Frequently asked questions
Lorazepam typically starts working within 30 to 60 minutes after you take it by mouth. Peak effects occur around 2 hours after taking a dose. The fast onset makes it helpful for acute anxiety or panic attacks. The calming effects usually last 6 to 8 hours.
Rite Aid pharmacy services are returning soon and will be available for lead generation. Lorazepam is a prescription medication, so you will need a valid prescription from your doctor. Once services are active, you can transfer your prescription to Rite Aid or have your doctor send it directly.
Lorazepam is generally intended for short-term use, typically 2 to 4 weeks. Long-term use can lead to tolerance, where you need higher doses for the same effect, and physical dependence. Your doctor may prescribe it for longer periods in certain situations but will monitor you closely. Never stop taking lorazepam suddenly after regular use, as this can cause serious withdrawal symptoms.
Liver function tests are the most important monitoring for lorazepam users, especially during prolonged treatment. Tests measuring ALT and AST enzymes check how well your liver is processing the medication. Rite Aid offers blood testing services with 200 plus biomarkers, including liver enzymes, for $349 per year with 2 tests annually. Your doctor will tell you how often to get tested based on your situation.
No, you should avoid alcohol completely while taking lorazepam. Combining alcohol with lorazepam can cause dangerous side effects including extreme drowsiness, slowed breathing, and loss of consciousness. This combination can be life-threatening. Always inform your doctor if you consume alcohol regularly.
If you miss a dose and remember within a few hours, take it as soon as you remember. If it is almost time for your next scheduled dose, skip the missed dose and continue with your regular schedule. Never take two doses at once to make up for a missed dose. Contact your doctor if you have questions about missed doses.
Yes, stopping lorazepam suddenly after regular use can cause withdrawal symptoms. These may include anxiety, insomnia, tremors, sweating, muscle aches, and in severe cases, seizures. Your doctor will create a tapering schedule to gradually reduce your dose if you need to stop. Never stop taking lorazepam abruptly without medical guidance.
Lorazepam can impair your ability to drive safely, especially when you first start taking it. It causes drowsiness, dizziness, and slowed reaction times. Avoid driving or operating machinery until you know how the medication affects you. Some people may need to avoid driving entirely while taking lorazepam.
Lorazepam may harm an unborn baby and is generally avoided during pregnancy, especially in the first trimester. Tell your doctor immediately if you are pregnant, planning to become pregnant, or breastfeeding. Your doctor will weigh the risks and benefits and may suggest alternative treatments. Never stop lorazepam suddenly if you become pregnant without talking to your doctor first.
Lorazepam is a benzodiazepine that works quickly to relieve anxiety symptoms. Unlike antidepressants like SSRIs that take weeks to work, lorazepam provides relief within an hour. However, it carries higher risks of dependence and is typically used short-term. SSRIs and other long-term anxiety medications are often preferred for ongoing treatment, while lorazepam helps with immediate symptom relief.