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Risperidone

Generic Name
Risperidone
Brand Names
Perseris, Risperdal, Rykindo, Uzedy, Okedi
Drug Type
Small Molecule
Chemical Formula
C23H27FN4O2
CAS Number
106266-06-2
Unique Ingredient Identifier
L6UH7ZF8HC

Overview

Risperidone is a second-generation antipsychotic (SGA) medication used in the treatment of a number of mood and mental health conditions including schizophrenia and bipolar disorder. It is one of the most widely used SGAs. Paliperidone, another commonly used SGA, is the primary active metabolite of risperidone (i.e. 9-hydroxyrisperidone). Schizophrenia and various mood disorders are thought to be caused by an excess of dopaminergic D2 and serotonergic 5-HT2A activity, resulting in overactivity of central mesolimbic pathways and mesocortical pathways, respectively. Risperidone is thought to reduce this overactivity through inhibition of dopaminergic D2 receptors and serotonergic 5-HT2A receptors in the brain. Risperidone binds with a very high affinity to 5-HT2A receptors, approximately 10-20 fold greater than the drug's binding affinity to D2 receptors, and carries lesser activity at several off-targets which may responsible for some of its undesirable effects.

Indication

Risperidone is indicated for the treatment of schizophrenia and irritability associated with autistic disorder. It is also indicated as monotherapy, or adjunctly with lithium or valproic acid, for the treatment of acute mania or mixed episodes associated with bipolar I disorder. Risperidone is additionally indicated in Canada for the short-term symptomatic management of aggression or psychotic symptoms in patients with severe dementia of the Alzheimer type unresponsive to nonpharmacological approaches. Risperidone is also used off-label for a number of conditions including as an adjunct to antidepressants in treatment-resistant depression.

Associated Conditions

  • Acute Mania
  • Irritability
  • Mixed manic depressive episode
  • Psychosis
  • Schizophrenia
  • Acute Manic episode
  • Agitated psychotic state

Research Report

Published: Jul 14, 2025

A Comprehensive Monograph on Risperidone: Pharmacology, Clinical Efficacy, and Safety

Executive Summary

Risperidone (DrugBank ID: DB00734) is a foundational second-generation, or atypical, antipsychotic agent that has played a pivotal role in psychiatric pharmacotherapy since its initial approval. As a small molecule benzisoxazole derivative, its pharmacological signature is defined by a potent, high-affinity antagonism of serotonin type 2A (5−HT2A​) receptors combined with a moderate-affinity antagonism of dopamine type 2 (D2​) receptors. This distinct receptor binding profile differentiates it from first-generation antipsychotics and is believed to underpin its efficacy against both the positive and negative symptoms of schizophrenia while carrying a reduced, though not eliminated, risk of extrapyramidal symptoms at therapeutic doses.

The clinical utility of risperidone is well-established across a range of psychiatric disorders. It holds regulatory approval for the treatment of schizophrenia in adults and adolescents, as monotherapy or adjunctive therapy for acute manic or mixed episodes associated with Bipolar I Disorder in adults and children, and for the management of irritability associated with autistic disorder in pediatric patients. Its application has also extended to numerous off-label uses, including as an adjunctive therapy in treatment-resistant depression.

Continue reading the full research report

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2025/08/12
Not Applicable
Completed
2025/07/11
Not Applicable
Not yet recruiting
2025/05/14
Phase 4
Not yet recruiting
2024/07/22
Phase 2
Recruiting
2024/07/01
Phase 3
Recruiting
Louisiana State University Health Sciences Center Shreveport
2024/04/16
Phase 1
ENROLLING_BY_INVITATION
Spanish Foundation for Neurometrics Development
2024/02/01
Phase 4
Recruiting
All India Institute of Medical Sciences, Bhubaneswar
2024/01/23
Phase 1
Completed
2024/01/11
Not Applicable
Completed
Dr Rabia Arshad
2023/06/06
Phase 4
Withdrawn

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
Janssen Pharmaceutical, Inc.
50458-602
ORAL
1 mg in 1 1
7/31/2025
Major Pharmaceuticals
0904-7363
ORAL
2 mg in 1 1
10/29/2023
State of Florida DOH Central Pharmacy
53808-1022
ORAL
3 mg in 1 1
1/18/2015
MSM Repackaging
42495-004
ORAL
2 mg in 1 1
10/13/2015
NuCare Pharmaceuticals,Inc.
68071-4618
ORAL
2 mg in 1 1
2/22/2021
Teva Pharmaceuticals USA, Inc.
51759-960
SUBCUTANEOUS
250 mg in 0.7 mL
5/8/2023
Teva Pharmaceuticals USA, Inc.
51759-630
SUBCUTANEOUS
125 mg in 0.35 mL
5/8/2023
REMEDYREPACK INC.
70518-2130
ORAL
1 mg in 1 1
2/27/2024
Ajanta Pharma USA Inc.
27241-005
ORAL
3 mg in 1 1
3/18/2024
TYA Pharmaceuticals
64725-0321
ORAL
4 mg in 1 1
8/14/2012

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
Authorised
2/14/2022

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
RISPERDAL CONSTA FOR INJECTION 37.5 mg/vial
SIN12354P
INJECTION, POWDER, FOR SOLUTION
37.5 mg/vial
7/21/2003
RISPERIDONE-CHANELLE ORAL SOLUTION 1 MG/ML
SIN15227P
SOLUTION
1mg/ml
4/26/2017
Apo-Risperidone 2mg Tablet
SIN13577P
TABLET, FILM COATED
2mg
12/1/2008
RISPERIDEX TABLET 4MG
SIN14416P
TABLET, FILM COATED
4.0MG
10/22/2013
RISPERDAL TABLET 1 mg
SIN08061P
TABLET, FILM COATED
1 mg
3/9/1995
RISPERIDEX TABLET 1MG
SIN14418P
TABLET, FILM COATED
1.0MG
10/22/2013
Apo-Risperidone 1mg Tablet
SIN13578P
TABLET, FILM COATED
1mg
12/1/2008
RISPERDAL ORAL SOLUTION 1 mg/ml
SIN09905P
SOLUTION
1 mg/ml
7/27/1998
EPERON FILM COATED TABLETS 2MG
SIN14774P
TABLET, FILM COATED
2.0 mg
4/10/2015
EPERON FILM COATED TABLETS 1MG
SIN14773P
TABLET, FILM COATED
1.0 mg
4/10/2015

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Health Canada Drug Approvals

Approved Product
Company
DIN
Dosage Form
Strength
Market Date
RAN-RISPERIDONE
ranbaxy pharmaceuticals canada inc.
02280949
Tablet - Oral
3 MG
6/30/2006
RAN-RISPERIDONE
ranbaxy pharmaceuticals canada inc.
02280922
Tablet - Oral
1 MG
6/30/2006
DOM-RISPERIDONE
dominion pharmacal
02278472
Tablet - Oral
3.0 MG
8/8/2006
AG-RISPERIDONE
angita pharma inc.
02369087
Tablet - Oral
0.5 MG
9/6/2018
IPG-RISPERIDONE
marcan pharmaceuticals inc
02359065
Tablet - Oral
0.5 MG
N/A
MYLAN-RISPERIDONE ODT
Mylan Pharmaceuticals ULC
02413485
Tablet (Orally Disintegrating) - Oral
0.5 MG
10/24/2013
TEVA-RISPERIDONE
teva canada limited
02264226
Tablet - Oral
3 MG
7/5/2006
RATIO-RISPERIDONE
ratiopharm inc division of teva canada limited
02264781
Tablet - Oral
2.0 MG
7/5/2006
RAN-RISPERIDONE
ranbaxy pharmaceuticals canada inc.
02280957
Tablet - Oral
4 MG
6/30/2006
RISPERDAL CONSTA
02298465
Powder For Suspension, Sustained-Release ,  Kit - Intramuscular
12.5 MG / VIAL
10/24/2007

CIMA AEMPS Drug Approvals

Approved Product
Company
Registration Number
Pharmaceutical Form
Prescription Type
Status
RISPERIDONA AUROVITAS 1 MG/ML SOLUCION ORAL EFG
Aurovitas Spain, S.A.U.
81426
SOLUCIÓN ORAL
Medicamento Sujeto A Prescripción Médica
Commercialized
ARKETIN 1 mg COMPRIMIDOS RECUBIERTOS CON PELICULA EFG
Neuraxpharm Spain S.L.
66588
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERIDONA CINFAMED 3 mg COMPRIMIDOS RECUBIERTOS CON PELICULA EFG
Laboratorios Cinfa S.A.
66776
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERIDONA VIATRIS 1 MG/ML SOLUCION ORAL EFG
69553
SOLUCIÓN ORAL
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERIDONA FLAS KRKA 2 mg COMPRIMIDOS BUCODISPERSABLES EFG
Krka D.D. Novo Mesto
71096
COMPRIMIDO BUCODISPERSABLE
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERIDONA AUROVITAS SPAIN 1 mg COMPRIMIDOS RECUBIERTOS CON PELICULA EFG
Aurovitas Spain, S.A.U.
69623
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Not Commercialized
RISPERIDONA CINFA 6 mg COMPRIMIDOS EFG
Laboratorios Cinfa S.A.
66931
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERIDONA TEVA 1 mg/ml SOLUCION ORAL EFG
Teva Pharma S.L.U.
69514
SOLUCIÓN ORAL
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERIDONA STADA 0,5 mg COMPRIMIDOS RECUBIERTOS CON PELICULA
Laboratorio Stada S.L.
67484
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Commercialized
RISPERDAL CONSTA, 37,5 mg POLVO Y DISOLVENTE PARA SUSPENSION DE LIBERACION PROLONGADA PARA INYECCION INTRAMUSCULAR
Janssen Cilag S.A.
65215
POLVO Y DISOLVENTE PARA SUSPENSIÓN INYECTABLE DE LIBERACIÓN PROLONGADA
Medicamento Sujeto A Prescripción Médica
Commercialized

Philippines FDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Philippines FDA approvals found for this drug.

Saudi SFDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Saudi SFDA approvals found for this drug.

Malaysia NPRA Drug Approvals

Approved Product
Company
Registration Number
Dosage Form
Strength
Approval Date
No Malaysia NPRA approvals found for this drug.

UK EMC Drug Information

Medicine Name
MA Holder
MA Number
Pharmaceutical Form
Active Ingredient
Authorization Date
No UK EMC drug information found for this drug.

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