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2018 Price of Tetrabenazine
Xenazine 12.5 mg tablet
* price without discount in nearest pharmacy. Price may vary.
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Tetrabenazine volume of distribution
Steady State, IV, in HD or tardive dyskinesia patients: 385L. Tetrabenazine is rapidly distributed to the brain following IV injection. The site with the highest binding is the striatum, while the lowest binding was observed in the cortex.
Discount Cards 16,000+
Clients Benefit 29%
Total savings $4,735,080
What is Tetrabenazine
A drug formerly used as an antipsychotic but now used primarily in the symptomatic treatment of various hyperkinetic disorders. It is a monoamine depletor and used as symptomatic treatment of chorea associated with Huntington’s disease. FDA approved on August 15, 2008.
Tetrabenazine mechanism of action
Tetrabenazine is a reversible human vesicular monoamine transporter type 2 inhibitor (Ki = 100 nM). It acts within the basal ganglia and promotes depletion of monoamine neurotransmitters serotonin, norepinephrine, and dopamine from stores. It also decreases uptake into synaptic vesicles. Dopamine is required for fine motor movement, so the inhibition of its transmission is efficacious for hyperkinetic movement. Tetrabenazine exhibits weak in vitro binding affinity at the dopamine D2 receptor (Ki = 2100 nM).
Dosage forms of Tetrabenazine
Humans and other mammals
Indication of Tetrabenazine
Treatment of hyperkinetic movement disorders like chorea in Huntington’s disease, hemiballismus, senile chorea, Tourette syndrome and other tic disorders, and tardive dyskinesia
Toxicity of Tetrabenazine
Dose-limiting adverse effects are sedation, parkinsonism, akathsia, and depression. LD50 oral, mouse: 550 mg/kg
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