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# Lorazepam
## Overview
Lorazepam is a short-acting benzodiazepine with anxiolytic, sedative, hypnotic, and anticonvulsant properties.
## Primary Indications
* Management of anxiety disorders
* Short-term relief of insomnia
* Premedication for surgical procedures
* Management of status epilepticus (adjunct)
## Adult Dosing
* **Anxiety:** 1-4 mg orally or IV/IM every 6-8 hours as needed. Maximum daily dose generally 10 mg, but can be higher in specific situations under close monitoring.
* **Insomnia:** 2-4 mg orally at bedtime.
* **Premedication:** 2-4 mg IM 2 hours before surgery, or 1-2 mg IV 15-30 minutes before induction.
* **Status Epilepticus:** 4 mg IV/IM. May repeat after 10-15 minutes if needed. Maximum initial dose is 8 mg.
## Pediatric Dosing
Dosing in pediatrics is less established and should be guided by expert opinion and specific clinical circumstances.
* **Anxiety/Sedation:** Generally 0.02-0.1 mg/kg/dose orally or IV/IM every 6-8 hours.
* **Status Epilepticus:** 0.1 mg/kg IV/IM (maximum 4 mg). May repeat once after 10-15 minutes.
## Dose Adjustments
* **Hepatic Impairment:** Use with caution; dose reduction may be necessary.
* **Renal Impairment:** Use with caution; dose reduction may be necessary.
* **Elderly:** Start with lower doses (e.g., 0.5-2 mg orally) and titrate slowly due to increased sensitivity and risk of adverse effects.
## Contraindications
* Known hypersensitivity to lorazepam or other benzodiazepines
* Acute narrow-angle glaucoma
* Severe respiratory insufficiency
* Severe hepatic insufficiency
* Sleep apnea
## Adverse Effects
* **Common:** Drowsiness, dizziness, weakness, unsteadiness.
* **Less Common:** Confusion, amnesia, paradoxical excitation, respiratory depression (especially with IV administration or in combination with other CNS depressants).
* **Severe:** Coma, cardiovascular collapse.
## Key Drug Interactions
* **CNS Depressants (e.g., opioids, alcohol, other sedatives):** Increased risk of profound sedation, respiratory depression, coma, and death. Concurrent use should be avoided or managed with extreme caution and reduced doses.
* **Theophylline/Aminophylline:** May decrease the sedative effects of lorazepam.
## Monitoring
* Level of consciousness and sedation
* Respiratory rate and oxygen saturation
* Blood pressure
* Signs of withdrawal upon discontinuation
## Clinical Pearls
* Intravenous administration can cause hypotension and respiratory depression. Administer slowly.
* Oral and IM routes have similar onset of action.
* Consider the risk of dependence and withdrawal, especially with prolonged use. Taper dose gradually if discontinuing.
* Avoid use in pregnancy unless clearly needed.
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*This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult the most current prescribing information and relevant guidelines before making clinical decisions.*
