TheraRadar
Data updated: May 26, 2026

SEROQUEL (quetiapine fumarate)

CNS Approved 1997-09-26

SEROQUEL is indicated for the treatment of Schizophrenia; Bipolar Disorder.

Source: FDA Label • CHEPLAPHARM

How SEROQUEL Works

The precise mechanism of action of quetiapine is not fully established for its approved indications. Its efficacy is thought to be mediated through a combination of antagonism at dopamine type 2 (D2) and serotonin type 2 (5HT2) receptors. The drug’s active metabolite, norquetiapine, also contributes to the therapeutic effect by acting on D2 receptors and providing greater activity at 5HT2A receptors than the parent drug.

6
Indications
--
Phase 3 Trials
1
Priority Reviews
28
Years on Market

Details

Status
Prescription
First Approved
1997-09-26
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: QUETIAPINE FUMARATE

SEROQUEL Approval History

1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
343 FDA actions from 1997 to 2025 · 3 indication expansions
Jan 2025 SUPPL
Label · Labeling
Jan 2022 SUPPL
Label · Labeling
Sep 2020 SUPPL
Label · Labeling

What SEROQUEL Treats

2 indications

SEROQUEL is approved for 2 conditions since its original approval in 1997. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Schizophrenia
  • Bipolar Disorder
Source: FDA Label

SEROQUEL Boxed Warning

INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS; and SUICIDAL THOUGHTS AND BEHAVIORS Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death [see Warnings and Precautions (5.1) ] . SEROQUEL is not approved for the treatment of patients with dementia-related psychosis [see Warnings and Precautions (5.1) ] . Suicidal Thoughts and Behaviors Anti...

SEROQUEL Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

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Clinical Trial Registry

12 trials
Trial Sponsor ID Phase Status Title
NCT06333990 20220796HU Ph 3 recruiting Quetiapine to Reduce Post Concussive Syndrome After Mild Traumatic Brain Injury (mTBI)
NCT01858948 results posted DK097599-01A1 5R01DK097599 Ph 3 completed SGA-induced Metabolic Syndrome in Bipolar Youth
NCT00674765 results posted 807057 - Kampan_AA016553 NIH Grant 1R01AA016553-01A1 Ph 2 completed Seroquel for Frequent, Heavy Drinkers
NCT01254721 STAR results posted D1443L00086 Ph 4 terminated A Comparison of the Effectiveness of Seroquel XR and Seroquel XR Plus Lithium in Patients With Acute Bipolar Mania: An Open-label, Randomized, Parallel Groups, Rater-blinded, 4 Week, Multicenter, Comparative,Study
NCT00773162 AzSeroSP Ph 3 completed Flushing in Social Anxiety Disorder on Seroquel
NCT00672490 MANIA results posted D1443L00023 Ph 4 completed Quetiapine Fumarate (Seroquel) as Mono-Therapy or Adjunct to Lithium in the Treatment of Patients With Acute Mania in Bipolar Disorder
NCT01603186 Ipca/ARL/257 Ph 1 completed Bioequivalence Study of Quetiapine Fumarate Tablets 25 mg Under Fed Condition
NCT01603173 Ipca/ARL/233 Ph 1 completed Bioequivalence Study of Quetiapine Fumarate Tablets 25 mg Under Fasting Condition
NCT01587066 D1443L00059 Ph 4 withdrawn Efficacy of Quetiapine XR Versus Divalproex on Clinical Outcome Quality of Sleep and Quality of Life in Bipolar Depression
NCT01566487 353-09 Ph 1 completed Bioequivalence Study of Quetiapine Fumarate Tablets 300 mg Under Fasting Condition
NCT00622245 12022A 2007-002551-17 Ph 2 terminated Efficacy and Safety of Lu AA34893 in Patients With Bipolar Depression
NCT00702676 D1443C00033 Ph 1 completed Quetiapine Fumarate Immediate Release (IR) Versus Extended Release (XR) Dose Escalation Comparison
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

SEROQUEL FDA Label Details

Indications & Usage

FDA Label (PDF)

SEROQUEL is indicated for the treatment of Schizophrenia; Bipolar Disorder.

⚠️ BOXED WARNING

WARNING: INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS; and SUICIDAL THOUGHTS AND BEHAVIORS Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of ...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.