Estazolam
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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.
Medical Uses[edit | edit source]
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.
Mechanism of Action[edit | edit source]
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.
Pharmacokinetics[edit | edit source]
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.
Side Effects[edit | edit source]
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.
Contraindications[edit | edit source]
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.
Interactions[edit | edit source]
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.
Legal Status[edit | edit source]
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.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
Benzodiazipines[edit source]
- Alprazolam
- Chlordiazepoxide
- Diazepam (Oral)
- Estazolam
- Flurazepam
- Lorazepam
- Midazolam
- Oxazepam
- Quazepam
- Temazepam
- Triazolam
Anticonvulsants Drugs[edit source]
Drug class for Estazolam[edit source]
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