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<p><b>New page</b></p><div>[[File:Estazolam.svg|thumb|Estazolam.svg]] '''Estazolam''' is a [[benzodiazepine]] derivative drug used primarily for the treatment of [[insomnia]]. It possesses [[anxiolytic]], [[anticonvulsant]], [[sedative]], and [[muscle relaxant]] properties. Estazolam is marketed under various brand names, including ProSom.<br />
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== Medical Uses ==<br />
Estazolam is primarily prescribed for the short-term management of [[insomnia]]. It helps patients fall asleep faster, reduces the number of awakenings during the night, and increases the total sleep time. Due to its potential for dependence and tolerance, it is generally recommended for short-term use only.<br />
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== Mechanism of Action ==<br />
Estazolam works by enhancing the effect of the neurotransmitter [[gamma-aminobutyric acid]] (GABA) at the [[GABA_A receptor]]. This action results in increased neuronal inhibition and produces the drug's sedative and anxiolytic effects.<br />
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== Pharmacokinetics ==<br />
Estazolam is well-absorbed from the gastrointestinal tract and reaches peak plasma concentrations within 2-3 hours after oral administration. It has a half-life of approximately 10-24 hours, which allows for once-daily dosing. The drug is metabolized in the liver and excreted primarily in the urine.<br />
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== Side Effects ==<br />
Common side effects of estazolam include [[drowsiness]], [[dizziness]], [[headache]], and [[nausea]]. More severe side effects can include [[memory impairment]], [[confusion]], and [[coordination problems]]. Long-term use can lead to [[tolerance]], [[dependence]], and [[withdrawal symptoms]] upon discontinuation.<br />
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== Contraindications ==<br />
Estazolam is contraindicated in patients with a history of [[hypersensitivity]] to benzodiazepines, severe [[respiratory insufficiency]], [[sleep apnea]], and [[myasthenia gravis]]. It should be used with caution in patients with [[liver disease]], [[renal impairment]], and a history of [[substance abuse]].<br />
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== Interactions ==<br />
Estazolam can interact with other central nervous system depressants, including [[alcohol]], [[opioids]], and other [[benzodiazepines]], leading to enhanced sedative effects. It may also interact with medications that inhibit or induce [[cytochrome P450]] enzymes, affecting its metabolism.<br />
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== Legal Status ==<br />
Estazolam is classified as a [[Schedule IV controlled substance]] under the [[Controlled Substances Act]] in the United States, indicating it has a lower potential for abuse and dependence compared to Schedule III substances.<br />
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== See Also ==<br />
* [[Benzodiazepine]]<br />
* [[Insomnia]]<br />
* [[Anxiolytic]]<br />
* [[Sedative]]<br />
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== References ==<br />
{{Reflist}}<br />
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== External Links ==<br />
{{Commons category|Estazolam}}<br />
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[[Category:Benzodiazepines]]<br />
[[Category:Sedatives]]<br />
[[Category:Hypnotics]]<br />
[[Category:Anxiolytics]]<br />
[[Category:Anticonvulsants]]<br />
[[Category:Muscle relaxants]]<br />
[[Category:Schedule IV controlled substances]]<br />
[[Category:Medicine]]<br />
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{{Benzodiazepines}}<br />
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