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Alprazolam, sold under the brand name Xanax among others, is a fast-acting, potent tranquilizer of moderate duration within the triazolobenzodiazepine group of chemicals called benzodiazepines. [15] Alprazolam is most commonly prescribed in the management of anxiety disorders, especially panic disorder and generalized anxiety disorder (GAD). [9]
In the elderly, long-term benzodiazepine therapy is a risk factor for amplifying cognitive decline, [29] although gradual withdrawal is associated with improved cognitive status. [30] A study of alprazolam found that 8 weeks administration of alprazolam resulted in deficits that were detectable after several weeks but not after 3.5 years. [31]
IC 50 / pIC 50 values represent binding affinity only and do not reflect efficacy or pharmacokinetics, and some compounds listed are GABA A antagonists rather than agonists (e.g. flumazenil). Low IC 50 or high pIC 50 values indicate tighter binding (pIC 50 of 8.0 = IC 50 of 10nM, pIC 50 of 9.0 = IC 50 of 1nM, etc.)
Midazolam 1 & 5 mg/mL injections (Canada). Benzodiazepines possess psycholeptic, sedative, hypnotic, anxiolytic, anticonvulsant, muscle relaxant, and amnesic actions, [4] [5] which are useful in a variety of indications such as alcohol dependence, seizures, anxiety disorders, panic, agitation, and insomnia.
For example, the reduction rate used in the Heather Ashton protocol calls for eliminating 10% of the remaining dose every two to four weeks, depending on the severity and response to reductions with the final dose at 0.5 mg dose of diazepam or 2.5 mg dose of chlordiazepoxide. [25]
Chemical structure of alprazolam, a common triazolobenzodiazepine. Triazolobenzodiazepines (TBZD) are a class of benzodiazepine (BZD) derivative pharmaceutical drugs. Chemically, they differ from other benzodiazepines by having an additional triazole ring fused to the diazepine ring. The triazole and diazepine rings share a nitrogen atom.
Brotizolam [3] (marketed under brand name Lendormin) is a sedative-hypnotic [4] thienotriazolodiazepine [5] drug which is a benzodiazepine analog. [6] It possesses anxiolytic, anticonvulsant, hypnotic, sedative and skeletal muscle relaxant properties, and is considered to be similar in effect to other short-acting hypnotic benzodiazepines such as triazolam or midazolam. [7]
Clonazolam's effects are similar to other benzodiazepines, such as anxiolysis, disinhibition, lethargy, muscle relaxation, and euphoria. [2] [8] While no dose of clonazolam is considered "safe" due to its lack of research and extreme potency, doses higher than 0.5 mg can cause benzodiazepine overdose in some individuals.