Knowra Lorazepam Lorazepam Lorazepam is a benzodiazepine medication that strengthens gamma-aminobutyric acid signaling in the brain. It is used for anxiety, acute seizures, insomnia, and agitation.
GABA receptor : A receptor protein that responds to gamma-aminobutyric acid, the brain’s principal inhibitory neurotransmitter. Lorazepam binds a site on GABA-A receptors and increases their response to GABA.
Generalized anxiety disorder : A disorder marked by excessive, persistent worry across multiple areas of life. Lorazepam can relieve acute anxiety symptoms, but long-term use is generally limited by dependence risks.
Diazepam : A long-acting benzodiazepine used for anxiety, muscle spasms, seizures, and alcohol withdrawal. Diazepam lasts longer and forms active metabolites, unlike lorazepam’s comparatively direct clearance.
Benzodiazepine dependence : A state in which regular benzodiazepine use leads to physical adaptation and difficulty stopping without symptoms. Repeated lorazepam use can produce dependence even when taken as prescribed.
GABA-A receptor : A ligand-gated chloride channel activated by gamma-aminobutyric acid and modulated by benzodiazepines. This receptor mediates lorazepam’s main calming, sedative, and anticonvulsant effects.
Status epilepticus : A prolonged seizure or a series of seizures without recovery that requires urgent treatment. Intravenous lorazepam is commonly used as an initial treatment for convulsive status epilepticus.
Alprazolam : A benzodiazepine commonly prescribed for anxiety and panic disorder. Both can reduce anxiety, but their pharmacokinetics and typical treatment contexts differ.
Benzodiazepine withdrawal syndrome : Symptoms that can follow reducing or stopping benzodiazepines after sustained use. Abruptly stopping lorazepam after regular use can cause severe withdrawal, including seizures.
Positive allosteric modulator : A substance that binds a receptor site distinct from the primary binding site and enhances its response to an activating ligand. Lorazepam amplifies GABA’s action rather than activating the receptor in the same way as GABA.
Insomnia : Persistent difficulty falling asleep, staying asleep, or obtaining restorative sleep despite adequate opportunity. Lorazepam may be prescribed briefly for sleep problems, but tolerance and dependence constrain use.
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