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Amisulpride

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Amisulpride
Amisulpride

4-amino-N-[(1-ethylpyrrolidin-2-yl)methyl]-
5-ethylsulfonyl-2-methoxy-benzamide
IUPAC name
CAS number
53583-79-2
ATC code

N05AL05

PubChem
2159
DrugBank
none
Chemical formula {{{chemical_formula}}}
Molecular weight 369.48 g/mol
Bioavailability 48%[1]
Metabolism  ?
Elimination half-life 12 h[1]
Excretion Renal[1]
Pregnancy category {{{pregnancy_category}}}
Legal status Rx-only
Routes of administration Oral, intramuscular[2]


Amisulpride (brand-name Solian®) is an antipsychotic drug sold by Sanofi-Aventis. Amisulpride is a selective dopamine antagonist. It has a high affinity for D2 (Ki 2.8 nM) and D3 (Ki 3.2 nM) dopaminergic receptors. Its dosage ranges from 200 to 1200 mg/day. Lower doses (less than 50 mg) preferentially block d2 autoreceptors that control the synthesis and release of dopamine. This results in an increase in dopaminergic transmission. This dopamine increase is hypothesized to cause a reduction in both depressive and negative symptoms. Higher doses of the drug block the postsynaptic dopamine receptors resulting in an improvement in psychoses. Amisulpride is not approved by the Food and Drug Administration for use in the United States. Amisulpride (in 50mg doses) is marketed as a treatment for dysthymia in Italy (as Deniban) In one study, anxiety measured by HAM-A total mean score decreased significantly more with amisulpride 50mg/day (63%) than with fluoxetine 20mg/day (54%; P = 0.021).[3]

Side effectsEdit

Prolactin induction, nausea, weight gain, although much less than similar drugs in its class, and less commonly QT interval prolongation (which can lead to serious heart arrhythmias). Overdoses of amisulpride have been linked with torsades de pointes.[4]

See also Edit

References Edit

  1. 1.0 1.1 1.2 Rosenzweig P, Canal M, Patat A, Bergougnan L, Zieleniuk I, Bianchetti G. (2002). A review of the pharmacokinetics, tolerability and pharmacodynamics of amisulpride in healthy volunteers.. Human Psychopharmacology 17 (1): 1-13.
  2. Cite error: Invalid <ref> tag; no text was provided for refs named cas_biam
  3. Smeraldi E (1998). Amisulpride versus fluoxetine in patients with dysthymia or major depression in partial remission: a double-blind, comparative study. J Affect Disord 48 (1): 47-56.
  4. Isbister G, Murray L, John S, Hackett L, Haider T, O'Mullane P, Gosselin S, Daly F (2006). Amisulpride deliberate self-poisoning causing severe cardiac toxicity including QT prolongation and torsades de pointes. Med J Aust 184 (7): 354-6. PMID 16584372. Free full text


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