Lorazepam 2mg Tablets
Overview
What is this medicine?
How to Use This Medicine
To use this medication correctly, follow your doctor's instructions and read all the information provided. You can take this medication with or without food, but if it causes stomach upset, take it with food.
Storing and Disposing of Your Medication
Store this medication at room temperature in a dry place, avoiding the bathroom. Keep it in a safe location where children and pets cannot access it, and consider using a locked box or area to prevent unauthorized use. Dispose of unused or expired medication by throwing it away, but do not flush it down the toilet or pour it down the drain unless instructed to do so. If you have questions about disposal, consult your pharmacist, who may be aware of local drug take-back programs.
Missing a Dose
If you take this medication regularly and miss a dose, take it as soon as you remember. However, if it is close to the time for your next dose, skip the missed dose and resume your regular schedule. Do not take two doses at the same time or take extra doses. If you take this medication as needed, do not take it more frequently than directed by your doctor.
Lifestyle & Tips
- Avoid alcohol and other central nervous system depressants (e.g., opioids, sleeping pills, cold/allergy medicines that cause drowsiness) as this can increase the risk of severe drowsiness, breathing problems, coma, and death.
- Do not drive or operate heavy machinery until you know how this medication affects you, as it can cause dizziness, drowsiness, and impaired coordination.
- Do not stop taking this medication suddenly, especially if you have been taking it regularly for a long time, as this can lead to withdrawal symptoms (e.g., seizures, tremors, severe anxiety). Your doctor will guide you on how to slowly reduce the dose.
- Inform your doctor about all other medications you are taking, including over-the-counter drugs, herbal supplements, and recreational drugs.
Available Forms & Alternatives
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
BLACK BOX WARNING
Side Effects
While rare, some people may experience severe and potentially life-threatening side effects when taking this medication. If you notice any of the following symptoms, contact your doctor or seek immediate medical attention:
Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
New or worsening behavioral or mood changes, including:
+ Depression
+ Thoughts of suicide
Hallucinations (seeing or hearing things that are not there)
Changes in balance
Feeling confused
Feeling nervous and excitable
Restlessness
Trouble sleeping
Increased interest in sex
Memory problems or loss
Severe dizziness or fainting
Changes in eyesight
Muscle weakness
Dark urine or yellowing of the skin and eyes
This medication may also cause severe and potentially life-threatening breathing problems. If you experience slow, shallow, or difficult breathing, contact your doctor immediately.
Other Possible Side Effects
Like all medications, this drug can cause side effects. Although many people do not experience any side effects or only have mild ones, it is essential to discuss any concerns with your doctor. If you experience any of the following side effects or any other symptoms that bother you or do not go away, contact your doctor:
Dizziness
Drowsiness
Fatigue
Weakness
* Headache
This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Extreme drowsiness or sedation
- Difficulty breathing or shallow breathing
- Unusual dizziness or lightheadedness
- Severe confusion or memory problems
- Slurred speech
- Unsteadiness or difficulty walking (ataxia)
- Paradoxical reactions such as increased agitation, aggression, hallucinations, or excitement
- Yellowing of the skin or eyes (jaundice)
- Signs of an allergic reaction (e.g., rash, itching, swelling, severe dizziness, trouble breathing)
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction and its symptoms.
Certain health conditions, including:
+ Glaucoma
+ Depression or specific mental health issues
+ Sleep apnea or breathing difficulties
+ Kidney disease or liver disease
This list is not exhaustive, and it is crucial to discuss all your health problems with your doctor.
Additionally, provide your doctor and pharmacist with a comprehensive list of all the medications you are taking, including:
Prescription medications
Over-the-counter (OTC) medications
Natural products
Vitamins
It is vital to verify that it is safe to take this medication with all your other medications and health conditions. Never start, stop, or adjust the dosage of any medication without consulting your doctor first.
Precautions & Cautions
Before using marijuana, other forms of cannabis, or prescription or over-the-counter (OTC) drugs that may cause drowsiness or slow your reactions, consult with your doctor. If you are taking this medication long-term, your doctor may recommend regular blood tests to monitor your condition.
Adhere to your doctor's prescribed dosage and duration of treatment. Do not take this medication for an extended period beyond what your doctor has recommended. Prolonged use or high doses may lead to tolerance, reducing the drug's effectiveness. If you experience decreased efficacy, contact your doctor. Do not exceed the prescribed dose, as this may increase the risk of adverse effects.
If you are 65 years or older, exercise caution when taking this medication, as you may be more susceptible to side effects. Similarly, if the patient is a child, use this medication with caution, as the risk of certain side effects may be higher in pediatric populations.
This medication may pose a risk to the unborn baby if taken during pregnancy. If you become pregnant or are already pregnant, notify your doctor immediately. Taking this medication late in pregnancy may increase the risk of respiratory or feeding problems, hypothermia, or withdrawal symptoms in the newborn. Discuss the potential risks with your doctor.
If you are breast-feeding or plan to breast-feed, inform your doctor, as this medication can pass into breast milk and potentially harm your baby.
Overdose Information
Overdose Symptoms:
- Extreme drowsiness
- Confusion
- Slurred speech
- Slowed reflexes
- Ataxia (loss of coordination)
- Hypotension (low blood pressure)
- Respiratory depression (slow, shallow breathing)
- Coma
What to Do:
Seek immediate medical attention. Call 911 or Poison Control at 1-800-222-1222. Flumazenil may be used as an antidote in severe cases, but it carries risks, especially in patients with chronic benzodiazepine use or seizure disorders.
Drug Interactions
Major Interactions
- Opioids (increased risk of profound sedation, respiratory depression, coma, and death)
- Other CNS depressants (e.g., alcohol, barbiturates, other benzodiazepines, tricyclic antidepressants, antihistamines, antipsychotics, general anesthetics, skeletal muscle relaxants) - increased risk of additive CNS depression.
- Valproate (increases lorazepam plasma concentrations and effects by inhibiting glucuronidation)
- Probenecid (increases lorazepam plasma concentrations and effects by inhibiting glucuronidation)
Moderate Interactions
- Scopolamine (increased incidence of sedation, hallucinations, and irrational behavior)
- Theophylline/Aminophylline (may antagonize sedative effects of lorazepam)
- Loxapine (may cause stupor, respiratory distress, and hypotension)
Minor Interactions
- Oral contraceptives (may slightly increase lorazepam clearance, but generally not clinically significant)
Monitoring
Baseline Monitoring
Rationale: To establish baseline and assess for excessive sedation or paradoxical reactions.
Timing: Prior to initiation and periodically during therapy.
Rationale: To assess for respiratory depression, especially with IV administration or concomitant CNS depressants.
Timing: Prior to initiation, during IV administration, and periodically during therapy.
Rationale: To monitor for hypotension or bradycardia, particularly with IV administration.
Timing: Prior to initiation and periodically during therapy.
Routine Monitoring
Frequency: Daily or as clinically indicated
Target: Improvement in target symptoms without excessive sedation.
Action Threshold: Lack of efficacy or excessive sedation warrants dose adjustment or re-evaluation.
Frequency: Daily or as clinically indicated
Target: Minimal to no adverse effects.
Action Threshold: Persistent or severe adverse effects warrant dose reduction or discontinuation.
Frequency: Periodically, especially with long-term use
Target: Absence of these signs.
Action Threshold: Development of tolerance or dependence requires re-evaluation of therapy; withdrawal symptoms upon discontinuation indicate physical dependence.
Symptom Monitoring
- Excessive sedation
- Dizziness
- Ataxia (impaired coordination)
- Slurred speech
- Confusion
- Memory impairment
- Respiratory depression (slow, shallow breathing)
- Paradoxical reactions (e.g., agitation, aggression, hallucinations, increased anxiety)
- Signs of withdrawal upon discontinuation (e.g., rebound anxiety, insomnia, tremors, seizures)
Special Patient Groups
Pregnancy
Category D. Lorazepam can cause fetal harm when administered to a pregnant woman. There is evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks (e.g., in life-threatening situations or for a serious disease for which safer drugs cannot be used or are ineffective). Neonatal flaccidity, respiratory and feeding difficulties, and hypothermia have been reported in infants born to mothers who have received benzodiazepines late in pregnancy.
Trimester-Specific Risks:
Lactation
L3 (Moderate risk). Lorazepam is excreted into breast milk. Due to its long half-life and potential for accumulation, it can cause sedation, poor feeding, and weight loss in breastfed infants. Use with caution; monitor infant for sedation and feeding difficulties. Consider alternatives or use the lowest effective dose for the shortest duration.
Pediatric Use
Use in pediatric patients is generally limited due to lack of established safety and efficacy, especially for anxiety/insomnia. IV lorazepam is used for status epilepticus in children. Oral use for anxiety is off-label and should be done with extreme caution, starting with very low doses and close monitoring. IV formulation contains propylene glycol and polyethylene glycol, which can cause toxicity (e.g., metabolic acidosis, renal dysfunction) in neonates and young children, especially with high doses or prolonged infusions.
Geriatric Use
Elderly patients are more sensitive to the effects of benzodiazepines and are at increased risk for adverse effects such as sedation, dizziness, ataxia, falls, and cognitive impairment. Start with the lowest effective dose (e.g., 0.5 mg) and titrate slowly. Monitor closely for CNS depression and falls. Avoid long-term use if possible.
Clinical Information
Clinical Pearls
- Lorazepam is often preferred in patients with liver impairment compared to other benzodiazepines because it undergoes direct glucuronidation, which is less affected by liver disease than oxidative metabolism.
- IV lorazepam is a first-line treatment for status epilepticus due to its rapid onset of action.
- Due to the risk of dependence and withdrawal, lorazepam should generally be used for short-term treatment (2-4 weeks) of anxiety or insomnia. Tapering is essential upon discontinuation after prolonged use.
- The IV formulation contains propylene glycol, which can accumulate and cause toxicity (e.g., metabolic acidosis, acute kidney injury) with high doses or prolonged infusions, especially in patients with renal impairment or in neonates/children.
- Paradoxical reactions (e.g., agitation, aggression, disinhibition) can occur, particularly in pediatric, elderly, or psychiatric patients.
Alternative Therapies
- Other benzodiazepines (e.g., alprazolam, clonazepam, diazepam, oxazepam)
- SSRIs (e.g., escitalopram, sertraline) for long-term anxiety management
- SNRIs (e.g., venlafaxine, duloxetine) for long-term anxiety management
- Buspirone (for anxiety, non-sedating)
- Hydroxyzine (for anxiety, sedating antihistamine)
- Z-drugs (e.g., zolpidem, eszopiclone) for insomnia
- Antidepressants (e.g., trazodone, mirtazapine) for insomnia
- Non-pharmacological therapies (e.g., cognitive behavioral therapy for anxiety/insomnia, relaxation techniques, lifestyle modifications)