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Title: Sulpiride  
Author: World Heritage Encyclopedia
Language: English
Subject: Amisulpride, Antipsychotic, Levosulpiride, Sultopride, Tiapride
Collection: Atypical Antipsychotics, Benzamides, Ghb Receptor Ligands, Phenol Ethers, Pyrrolidines, Sulfonamides
Publisher: World Heritage Encyclopedia


Systematic (IUPAC) name
Clinical data
Trade names Dolmatil, Sulparex (discontinued), Sulpor
Legal status
Routes of
Pharmacokinetic data
Bioavailability 25–40%[1][2]
Protein binding <40%[1]
Metabolism Not metabolised[3]
Biological half-life 6-8 hours[1]
Excretion Renal (70-90%),[2] Faecal (~95% as the unchanged drug)[1]
CAS Registry Number  Y
ATC code N05
PubChem CID:
DrugBank  Y
ChemSpider  Y
Chemical data
Formula C15H23N3O4S
Molecular mass 341.427 g/mol

Sulpiride (brand names Dogmatil (HK, SG, PH), Dolmatil (IE, UK), Eglonyl (RU, ZA), Espiride (ZA), Modal (IL), Prometar (UY), Sulpor (UK) and others) is an atypical antipsychotic drug (although some texts have referred to it as a typical antipsychotic[4]) of the benzamide class used mainly in the treatment of psychosis associated with schizophrenia and major depressive disorder, and sometimes used in low dosage to treat anxiety and mild depression. Sulpiride is commonly used in Europe, Russia and Japan. Levosulpiride is its purified levo-isomer and is sold in India for similar purpose. So far it has not been approved in the United States, Canada and Australia. The drug is chemically and clinically similar to amisulpride.


  • Medical uses 1
    • Pregnancy and lactation 1.1
  • Adverse effects 2
    • Contraindications and cautions 2.1
    • Overdose 2.2
  • Synthesis 3
  • Pharmacology 4
  • See also 5
  • References 6

Medical uses

Sulpiride's primary use in medicine is in the management of the symptoms of schizophrenia.[1] It has been used as both a monotherapy and adjunctive therapy (in case of treatment-resistance) in schizophrenia.[1][5][6][7][8][9] It has also been used in the treatment of dysthymia.[10] Augmentation with sulpiride has also been tried as a strategy for accelerating antidepressant response in patients with major depressive disorder.[11] There is also evidence of its efficacy in treating panic disorder.[12][13]

Pregnancy and lactation

  • Pregnancy: Animal studies did not reveal any embryotoxicity or fetotoxicity, nor did limited human experience. Due to insufficient human data, pregnant women should be treated with sulpiride only if strictly indicated. Additionally, the newborns of treated women should be monitored, because isolated cases of extrapyramidal side effects have been reported.[1]
  • Lactation: Sulpiride is found in the milk of lactating women. Since the consequences are unclear, women should not breastfeed during treatment.[1]

Adverse effects

Sulpiride is usually well-tolerated, producing few adverse effects. Their incidences are as follows:[1][5][14][15][16][17][18][19][20]

Common (>1%) adverse effects
  • Dizziness
  • Headache
  • Extrapyramidal side effects
- Tremor
- Dystonia
- Akathisia — a sense of inner restlessness that presents itself with the inability to stay still.
- Parkinsonism
  • Somnolence (not a very prominent adverse effect considering its lack of alpha-1 adrenergic, histamine and muscarinic acetylcholine receptor affinity)
  • Insomnia
  • Weight gain or loss
  • Hyperprolactinaemia (elevated plasma levels of the hormone, prolactin which can, in turn lead to sexual dysfunction, galactorrhoea, amenorrhoea, gynaecomastia, etc.)
  • Nausea
  • Vomiting
  • Nasal congestion
  • Anticholinergic adverse effects such as:
- Dry mouth
- Constipation
- Blurred vision
  • Restlessness
  • Impaired concentration
Rare (<1% incidence) adverse effects
  • Tardive dyskinesia — a rare, often permanent movement disorder that, more often than not, results from prolonged treatment with antidopaminergic agents such as antipsychotics. It presents with slow (hence tardive), involuntary, repetitive and purposeless movements that most often affect the facial muscles.
  • Neuroleptic malignant syndrome — a rare, life-threatening complication that results from the use of antidopaminergic agents. Its incidence increases with concomitant use of lithium (medication) salts.
  • Blood dyscrasias — rare, sometimes life-threatening complications of the use of a number of different antipsychotics (most notably clozapine) which involves abnormalities in the composition of a person's blood (e.g. having too few white blood cells per unit volume of blood. Examples include:
- Agranulocytosis — a significant drop in white blood cell count, leaving individuals wide open to life-threatening opportunistic infections.
- Neutropaenia
- Leucopenia
- Leukocytosis[21]
Unknown incidence adverse effects include
  • QTc interval prolongation which can lead to potentially fatal arrhythmias.
  • Cholestatic jaundice[22]
  • Elevated liver enzymes
  • Primary biliary cirrhosis[23]
  • Allergic reactions
  • Photosensitivity — sensitivity to light.
  • Skin rashes
  • Depression
  • Catatonia
  • Palpitations
  • Agitation
  • Diaphoresis — sweating without a precipitating factor (e.g. increased ambient temperature).
  • Hypotension — low blood pressure.
  • Hypertension — high blood pressure.
  • Venous thromboembolism (probably rare)

Contraindications and cautions


  • Hypersensitivity to sulpiride
  • Pre-existing breast cancer or other prolactin-dependent tumors
  • Phaeochromocytoma
  • Intoxication with other centrally active drugs
  • Concomitant use of levodopa
  • Acute porphyria
  • Comatose state or CNS depression
  • Bone-marrow suppression



Sulpiride has a relatively low order of acute toxicity. Substantial amounts may cause severe but reversible dystonic crises with torticollis, protrusion of the tongue, and/or trismus. In some cases all the classical symptoms typical of severe Parkinson's Disease may be noted; in others, over-sedation/coma may occur. The treatment is largely symptomatic. Some or all extrapyramidal reactions may respond to the application of anticholinergic drugs such as biperiden or benztropine. All patients should be closely monitored for signs of long-QT syndrome and severe arrhythmias.


Sulpiride synthesis: E.L. Engelhardt, Ch.S. Miller, DE 1595915  (1965) E.L. Engelhardt, Ch.S. Miller, DE 1795723  (1965) E.L. Engelhardt, M.L. Thominet, U.S. Patent 3,342,826 (1969) G. Bulteau, J. Acher, U.S. Patent 4,077,976 (1978) F. Mauri, DE 2903891  (1979).

Sulpiride can be synthesized from 5-aminosulfosalicylic acid. Methylating this with dimethylsulfate gives 2-methoxy-5-aminosulfonylbenzoic acid, which is transformed into an amide using 2-aminomethyl-1-ethylpyrrolidine as the amine component and carbonyldiimidazole (CDI) as a condensing agent.


Sulpiride is a selective antagonist at dopamine D2 and D3 receptors. This action dominates in doses exceeding 600 mg daily. In doses of 600 to 1,600 mg sulpiride shows mild sedating and antipsychotic activity. Its antipsychotic potency compared to chlorpromazine is only 0.2 (1/5). In low doses (in particular 50 to 200 mg daily) its prominent feature is antagonism of presynaptic inhibitory dopamine receptors accounting for some antidepressant activity and a stimulating effect. Therefore, it is in these doses used as a second line antidepressant. Additionally, it alleviates vertigo.

The benzamide neuroleptics (including sulpiride, amisulpride, and sultopride) have been shown to activate the endogenous gamma-hydroxybutyrate receptor in vivo at therapeutic concentrations.[24] Sulpiride was found in one study in rats to upregulate GHB receptors.[25] GHB has neuroleptic properties and it is believed binding to this receptor may contribute to the effects of these neuroleptics.

Sulpiride, along with clozapine, has been found to activate DNA demethylation in the brain.[26]

Protein Binding affinity (Ki [nM]) towards cloned human receptors[27]
5-HT1A >10000
D1 >10000
D2 9.8
D3 8.05
D4 54
V3 >10000

See also


  1. ^ a b c d e f g h i j k "Sulpiride Tablets 200mg, 400mg (SPC)". electronic Medicines Compendium (eMC). Sanofi. 21 January 2010. Retrieved 19 October 2013. 
  2. ^ a b Bressolle, F; Brès, J; Fauré-Jeantis, A (January 1992). "Absolute bioavailability, rate of absorption, and dose proportionality of sulpiride in humans". Journal of Pharmaceutical Sciences 81 (1): 26–32.  
  3. ^ Imondi, AR; Alam, AS; Brennan, JJ; Hagerman, LM (March 1979). "Metabolism of sulpiride in man and Rhesus monkey". Archives Internationales de Pharmacodynamie et de Thérapie 232 (1): 79–91.  
  4. ^ Joint Formulary Committee (2013). British National Formulary (BNF) (65 ed.). London, UK: Pharmaceutical Press.  
  5. ^ a b Taylor, D; Paton, C; Shitij, K (2012). The Maudsley prescribing guidelines in psychiatry. West Sussex: Wiley-Blackwell.  
  6. ^ Wang, J; Omori, IM; Fenton, M; Soares, B (January 2010). "Sulpiride augmentation for schizophrenia". The Cochrane Database of Systematic Reviews (1): CD008125.  
  7. ^ Chia-Cheng Lai, E; Chang, CH; Yang, YHK; Lin, SJ; Lin, CY (2013). "Effectiveness of Sulpiride in Adult Patients With Schizophrenia". Schizophrenia Bulletin 39 (3): 673–683.  
  8. ^ Soares, BG; Fenton, M; Chue, P (2000). "Sulpiride for schizophrenia". The Cochrane Database of Systematic Reviews (2): CD001162.  
  9. ^ Omori, IM; Wang, J; Soares, B; Fenton, M (October 2009). "Sulpiride versus other antipsychotics for schizophrenia (Protocol)". The Cochrane Database of Systematic Reviews (4): CD008126.  
  10. ^ Pani, L; Gessa, GL (2002). "The substituted benzamides and their clinical potential on dysthymia and on the negative symptoms of schizophrenia" (PDF). Molecular Psychiatry 7 (3): 247–253.  
  11. ^ Uchida, H; Takeuchi, H; Suzuki, T; Nomura, K; Watanabe, K; Kashima, H (December 2005). "Combined treatment with sulpiride and paroxetine for accelerated response in patients with major depressive disorder". Journal of Clinical Psychopharmacology 25 (6): 545–551.  
  12. ^ Bell, C; Bhikha, S; Colhoun, H; Carter, F; Frampton, C; Porter, R (February 2013). "The response to sulpiride in social anxiety disorder: D2 receptor function". Journal of Psychopharmacology 27 (2): 146–151.  
  13. ^ Nunes, EA; Freire, RC; Dos Reis, M; de Oliveira, E; Silva, AC; Machado, S; Crippa, JA; Dursun, SM; Baker, GB; Hallak, JE; Nardi, AE (September 2012). "Sulpiride and refractory panic disorder". Psychopharmacology 223 (2): 247–249.  
  14. ^ Lepola, U; Koskinen, T; Rimón, R; Salo, H; Gordin, A (July 1989). "Sulpiride and perphenazine in schizophrenia. A double-blind clinical trial". Acta Psychiatrica Scandinavica 80 (1): 92–96.  
  15. ^ Munk-Andersen, E; Behnke, K; Heltberg, J; Nielsen, H; Gerlach, J (1984). "Sulpiride versus haloperidol, a clinical trial in schizophrenia. A preliminary report". Acta Psychiatrica Scandinavica Supplementum 311: 31–41.  
  16. ^ Gerlach, J; Behnke, K; Heltberg, J; Munk-Anderson, E; Nielsen, H (Sep 1985). "Sulpiride and haloperidol in schizophrenia: a double-blind cross-over study of therapeutic effect, side effects and plasma concentrations". British Journal of Psychiatry 147: 283–288.  
  17. ^ Standish-Barry, HM; Bouras, N; Bridges, PK; Watson, JP (1983). "A randomized double blind group comparative study of sulpiride and amitriptyline in affective disorder". Psychopharmacology 81 (3): 258–260.  
  18. ^ Quinn, N; Marsden, CD (August 1984). "A double blind trial of sulpiride in Huntington's disease and tardive dyskinesia" (PDF). Journal of Neurology, Neurosurgery and Psychiatry 47 (8): 844–847.  
  19. ^ Peselow, ED; Stanley, M (1982). "Clinical trials of benzamides in psychiatry". Advances in Biochemical Psychopharmacology 35: 163–194.  
  20. ^ Edwards, JG; Alexander, JR; Alexander, MS; Gordon, A; Zutchi, T (December 1980). "Controlled trial of sulpiride in chronic schizophrenic patients". The British Journal of Psychiatry 137: 522–529.  
  21. ^ Levkovitz, H; Abramovitch, Y; Nitzan, I (June 1994). "Leukocytosis related to the therapeutic dosage of sulpiride". Biological Psychiatry 35 (12): 963.  
  22. ^ Melzer, E; Knobel, B (December 1987). "Severe cholestatic jaundice due to sulpiride". Israel Journal of Medical Sciences 23 (12): 1259–1260.  
  23. ^ Ohmoto, K; Yamamoto, S; Hirokawa, M (December 1999). "Symptomatic primary biliary cirrhosis triggered by administration of sulpiride". The American Journal of Gastroenterology 94 (12): 3660–3661.  
  24. ^ Maitre M, Ratomponirina C, Gobaille S, Hodé Y, Hechler V (Apr 1994). "Displacement of [3H] gamma-hydroxybutyrate binding by benzamide neuroleptics and prochlorperazine but not by other antipsychotics". Eur J Pharmacol. 256 (2): 211–4.  
  25. ^ Ratomponirina C, Gobaille S, Hodé Y, Kemmel V, Maitre M (Apr 1998). "Sulpiride, but not haloperidol, up-regulates gamma-hydroxybutyrate receptors in vivo and in cultured cells". Eur J Pharmacol. 346 (2–3): 331–7.  
  26. ^ Dong, E; Nelson, M; Grayson, DR; Costa, E; Guidotti, A (August 2008). "Clozapine and sulpiride but not haloperidol or olanzapine activate brain DNA demethylation" (PDF). Proceedings of the National Academy of Sciences of the United States of America 105 (36): 13614–13619.  
  27. ^ Roth, BL; Driscol, J (12 January 2011). "PDSP Ki Database". Psychoactive Drug Screening Program (PDSP). University of North Carolina at Chapel Hill and the United States National Institute of Mental Health. Retrieved 19 October 2013. 
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