On this page

Quetiapine

Prescription ANDA TE AB Official labelling
Informational index, not medical advice. Content is reproduced from public FDA and NLM data. Always confirm against the manufacturer's current prescribing information. Report adverse events to FDA MedWatch.

Overview

Brand name
Quetiapine
Generic name
Quetiapine
Dosage form
Tablet, Extended Release
Route
—
Marketing category
ANDA · ANDA
Labeler
AstraZeneca Pharmaceuticals LP
Product type
Human Prescription Drug
DEA schedule
Not scheduled
Active ingredients
10
NDC product codes
31
Packages
41
Data completeness
82% of corroborating sources present

Active ingredients

Source: NDC Directory
Active ingredients and strengths as listed in the NDC Directory.
Ingredient Strength RxCUI Monograph
Quetiapine 150 mg/1 721791 —
Quetiapine 200 mg/1 721791 —
Quetiapine 300 mg/1 721791 —
Quetiapine 400 mg/1 721791 —
Quetiapine 50 mg/1 721791 —
Quetiapine Fumarate 150 mg/1 312743 View
Quetiapine Fumarate 200 mg/1 312743 View
Quetiapine Fumarate 300 mg/1 312743 View
Quetiapine Fumarate 400 mg/1 312743 View
Quetiapine Fumarate 50 mg/1 312743 View

Forms, strengths and routes

Source: NDC Directory
Dosage form
Tablet, Extended Release
Route of administration
—
Presentations
72

Pharmacologic classes are listed in the class section below.

Pharmacologic class

Source: NDC Directory
Established pharmacologic classes (EPC), mechanisms of action (MoA), chemical structures (CS) and physiologic effects (PE).
Class Type Browse
Atypical Antipsychotic [EPC] EPC All 62 members

Regulatory status

Source: Drugs@FDANDC Directory
Application number
215478
Application type
ANDA · Abbreviated New Drug Application
Approval date
August 15, 2022
Sponsor
UNICHEM
Products on application
5
Submissions recorded
1
Products approved under application 215478.
Product Trade name Form Strength Ingredient Status TE Flags
215478-001 QUETIAPINE FUMARATE TABLET, EXTENDED RELEASE QUETIAPINE FUMARATE Prescription AB
215478-002 QUETIAPINE FUMARATE TABLET, EXTENDED RELEASE QUETIAPINE FUMARATE Prescription AB
215478-003 QUETIAPINE FUMARATE TABLET, EXTENDED RELEASE QUETIAPINE FUMARATE Prescription AB
215478-004 QUETIAPINE FUMARATE TABLET, EXTENDED RELEASE QUETIAPINE FUMARATE Prescription AB
215478-005 QUETIAPINE FUMARATE TABLET, EXTENDED RELEASE QUETIAPINE FUMARATE Prescription AB

Therapeutic equivalence

Source: Orange Book
TE code
AB
Reference Listed Drug
No
Reference Standard
No

What this rating means: Therapeutically equivalent — bioequivalence demonstrated by in vivo or in vitro testing

Codes beginning with “A” indicate products the FDA considers therapeutically equivalent. Codes beginning with “B” indicate bioequivalence has not been established. See methodology.

Approval history

Source: Drugs@FDA
Most recent submissions on application 215478.
Type No. Action Status Date Review
Original application 1 Approved August 15, 2022 Standard

Prescribing information

Source: openFDA Drug Labeling

Reproduced verbatim from the Structured Product Labeling submitted to the FDA (effective 20260715). This is the manufacturer's labelling text, not a summary and not advice.

HUMAN PRESCRIPTION DRUG · 20260715 HUMAN PRESCRIPTION DRUG · 20251216 HUMAN PRESCRIPTION DRUG · 20250602 HUMAN PRESCRIPTION DRUG · 20231031

Boxed Warning

openFDA Drug Labeling

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 )]. Quetiapine extended-release tablets are not approved for the treatment of patients with dementia-related psychosis [ see Warnings and Precautions (5.1 )]. Suicidal Thoughts and Behaviors Antidepressants increased the risk of suicidal thoughts and behavior in children, adolescents, and young adults in short-term studies. These studies did not show an increase in the risk of suicidal thoughts and behavior with antidepressant use in patients over age 24; there was a reduction in risk with antidepressant use in patients aged 65 and older [ see Warnings and Precautions (5.2 )]. In patients of all ages who are started on antidepressant therapy, monitor closely for worsening, and for emergence of suicidal thoughts and behaviors. Advise families and caregivers of the need for close observation and communication with the prescriber [ see Warnings and Precautions (5.2 )]. Quetiapine extended-release tablets are not approved for use in pediatric patients under ten years of age [ see Use in Specific Populations (8.4)]. WARNING: INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS; and SUICIDAL THOUGHTS AND BEHAVIORS See full prescribing information for complete boxed warning . 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. Quetiapine extended-release tablets are not approved for elderly patients with dementia-related psychosis. ( 5.1 ) Suicidal Thoughts and Behaviors • Increased risk of suicidal thoughts and behavior in children, adolescents and young adults taking antidepressants. ( 5.2 ) • Monitor for worsening and emergence of suicidal thoughts and behaviors. ( 5.2 )

Recent Major Changes

openFDA Drug Labeling

Recent Major Changes Warnings and Precautions ( 5.15 ) 1/2025

Indications and Usage

openFDA Drug Labeling

1 INDICATIONS AND USAGE Quetiapine extended-release tablets are an atypical antipsychotic indicated for the treatment of: • Schizophrenia (1.1) • Bipolar I disorder, manic, or mixed episodes (1.2) • Bipolar disorder, depressive episodes (1.2) • Major depressive disorder, adjunctive therapy with antidepressants (1.3) 1.1 Schizophrenia Quetiapine extended-release tablets are indicated for the treatment of schizophrenia. The efficacy of quetiapine extended-release tablets in schizophrenia was established in one 6-week and one maintenance trial in adults with schizophrenia. Efficacy was supported by three 6-week trials in adults with schizophrenia and one 6-week trial in adolescents with schizophrenia (13 to 17 years) treated with quetiapine tablets [see Clinical Studies (14.1) ]. 1.2 Bipolar Disorder Quetiapine extended-release tablets are indicated for the acute treatment of manic or mixed episodes associated with bipolar I disorder, both as monotherapy and as an adjunct to lithium or divalproex. The efficacy of quetiapine extended-release tablets in manic or mixed episodes of bipolar I disorder was established in one 3-week trial in adults with manic or mixed episodes associated with bipolar I disorder. Efficacy was supported by two 12-week monotherapy trials and one 3-week adjunctive trial in adults with manic episodes associated with bipolar I disorder as well as one 3-week monotherapy trial in children and adolescents (10 to 17 years) with manic episodes associated with bipolar I disorder treated with quetiapine tablets [see Clinical Studies (14.2) ]. Quetiapine extended-release tablets are indicated for the acute treatment of depressive episodes associated with bipolar disorder. The efficacy of quetiapine extended-release tablets was established in one 8-week trial in adults with bipolar I or II disorder and supported by two 8-week trials in adults with bipolar I or II disorder treated with quetiapine tablets [see Clinical Studies (14.2) ]. Quetiapine extended-release tablets are indicated for the maintenance treatment of bipolar I disorder, as an adjunct to lithium or divalproex. Efficacy was extrapolated from two maintenance trials in adults with bipolar I disorder treated with quetiapine tablets. The effectiveness of monotherapy for the maintenance treatment of bipolar I disorder has not been systematically evaluated in controlled clinical trials [see Clinical Studies (14.2) ]. 1.3 Adjunctive Treatment of Major Depressive Disorder (MDD) Quetiapine extended-release tablets are indicated for use as adjunctive therapy to antidepressants for the treatment of MDD. The efficacy of quetiapine extended-release tablets as adjunctive therapy to antidepressants in MDD was established in two 6-week trials in adults with MDD who had an inadequate response to antidepressant treatment [see Clinical Studies (14.3) ]. 1.4 Special Considerations in Treating Pediatric Schizophrenia and Bipolar I Disorder Pediatric schizophrenia and bipolar I disorder are serious mental disorders, however, diagnosis can be challenging. For pediatric schizophrenia, symptom profiles can be variable, and for bipolar I disorder, patients may have variable patterns of periodicity of manic or mixed symptoms. It is recommended that medication therapy for pediatric schizophrenia and bipolar I disorder be initiated only after a thorough diagnostic evaluation has been performed and careful consideration given to the risks associated with medication treatment. Medication treatment for both pediatric schizophrenia and bipolar I disorder is indicated as part of a total treatment program that often includes psychological, educational and social interventions.

Dosage and Administration

openFDA Drug Labeling

2 DOSAGE & ADMINISTRATION • Swallow tablets whole and do not split, chew or crush ( 2.1 ) • Take without food or with a light meal (approx. 300 calories) ( 2.1 ) • Administer once daily, preferably in the evening ( 2.1 ) • Geriatric Use: Consider a lower starting dose (50 mg/day), slower titration, and careful monitoring during the initial dosing period in the elderly. ( 2.3 , 8.5 ) • Hepatic Impairment: Lower starting dose (50 mg/day) and slower titration may be needed ( 2.4 , 8.7 , 12.3 ) Indication Initial Dose Recommended Dose Maximum Dose Schizophrenia - Adults ( 2.2 ) 300 mg/day 400 to 800 mg/day 800 mg/day Schizophrenia-Adolescents (13 to 17 years) ( 2.2 ) 50 mg/day 400 to 800 mg/day 800 mg/day Bipolar I Disorder manic or mixed - Acute monotherapy or adjunct to lithium or divalproex -Adults ( 2.2) 300 mg/day 400 to 800 mg/day 800 mg/day Bipolar I Disorder, manic Acute monotherapy -Children and Adolescents (10 to 17 years) ( 2.2 ) 50 mg/day 400 to 600 mg/day 600 mg/day Bipolar Disorder, Depressive Episodes - Adults ( 2.2 ) 50 mg/day 300 mg/day 300 mg/day Major Depressive Disorder, Adjunctive Therapy with Antidepressants - Adults ( 2.2 ) 50 mg/day 150 to 300 mg/day 300 mg/day 2.1 Important Administration Instructions Quetiapine extended-release tablets should be swallowed whole and not split, chewed, or crushed. It is recommended that quetiapine extended-release tablets be taken without food or with a light meal (approximately 300 calories) [ see Clinical Pharmacology (12.3)]. Quetiapine extended-release tablets should be administered once daily, preferably in the evening. 2.2 Recommended Dosing The recommended initial dose, titration, dose range and maximum quetiapine extended-release tablets dose for each approved indication is displayed in Table 1 below. After initial dosing, adjustments can be made upwards or downwards, if necessary, depending upon the clinical response and tolerability of the patient [see Clinical Studies ( 14.1 , 14.2 and 14.3 )]. Table 1: Recommended Dosing for Quetiapine Extended-Release Tablets Indication Initial Dose and Titration Recommended Dose Maximum Dose Schizophrenia -Adults Day 1: 300 mg/day Dose increases can be made at intervals as short as 1 day and in increments of up to 300 mg/day 400 to 800 mg/day 800 mg/day Schizophrenia -Adolescents (13 to 17 years) Day 1: 50 mg/day Day 2: 100 mg/day Day 3: 200 mg/day Day 4: 300 mg/day Day 5: 400 mg/day 400 to 800 mg/day 800 mg/day Schizophrenia Maintenance - Monotherapy - Adults Not applicable 400 to 800 mg/day 800 mg/day Bipolar I Disorder manic or mixed - Acute monotherapy or adjunct to lithium or divalproex - Adults Day 1: 300 mg/day Day 2: 600 mg/day Day 3: between 400 and 800 mg/day 400 to 800 mg/day 800 mg/day Bipolar I Disorder, manic Acute monotherapy Children and Adolescents (10 to 17 years) Day 1: 50 mg/day Day 2: 100 mg/day Day 3: 200 mg/day Day 4: 300 mg/day Day 5: 400 mg/day 400 to 600 mg/day 600 mg/day Bipolar Disorder, Depressive Episodes - Adults Day 1: 50 mg/day Day 2: 100 mg/day Day 3: 200 mg/day Day 4: 300 mg/day 300 mg/day 300 mg/day Bipolar I Disorder Maintenance - Adjunct to lithium or divalproex - Adults Not applicable 400 to 800 mg/day 800 mg/day Major Depressive Disorder - Adjunctive Therapy with Antidepressants-Adults Day 1: 50 mg/day Day 2: 50 mg/day Day 3: 150 mg/day 150 to 300 mg/day 300 mg/day Maintenance Treatment for Schizophrenia and Bipolar I Disorder Maintenance Treatment-Patients should be periodically reassessed to determine the need for maintenance treatment and the appropriate dose for such treatment [ see Clinical Studies ( 14.1 , 14.2 )]. 2.3 Dose Modifications in Elderly Patients Consideration should be given to a slower rate of dose titration and a lower target dose in the elderly and in patients who are debilitated or who have a predisposition to hypotensive reactions [see Use in Specific Populations ( 8.5 , 8.7 ), and Clinical Pharmacology ( 12.3 )] . When indicated, dose escalation should be performe …

Dosage Forms and Strengths

openFDA Drug Labeling

3 DOSAGE FORMS AND STRENGTHS 50 mg extended-release tablets are peach film-coated, capsule-shaped, biconvex, intagliated tablet with "74" on one side and "U" on the other side 150 mg extended-release tablets are white film-coated, capsule-shaped, biconvex, intagliated tablet with "72" on one side and "U" on the other side 200 mg extended-release tablets are yellow film-coated, capsule-shaped, biconvex, intagliated tablet with "73" on one side and "U" on the other side 300 mg extended-release tablets are pale yellow film-coated, capsule-shaped, biconvex, intagliated tablet with "75" on one side and "U" on the other side 400 mg extended-release tablets are white film-coated, capsule-shaped, biconvex, intagliated tablet with "77" on one side and "U" on the other side Extended-Release Tablets: 50 mg, 150 mg, 200 mg, 300 mg, and 400 mg ( 3 )

Contraindications

openFDA Drug Labeling

4 CONTRAINDICATIONS Hypersensitivity to quetiapine or to any excipients in the quetiapine extended-release tablets formulation. Anaphylactic reactions have been reported in patients treated with quetiapine extended-release tablets. Known hypersensitivity to quetiapine extended-release tablets or any components in the formulation. ( 4 )

Warnings and Cautions

openFDA Drug Labeling

5 WARNINGS AND PRECAUTIONS • Cerebrovascular Adverse Reactions: Increased incidence of cerebrovascular adverse reactions (e.g., stroke, transient ischemic attack) has been seen in elderly patients with dementia-related psychoses treated with atypical antipsychotic drugs (5.3) • Neuroleptic Malignant Syndrome (NMS): Manage with immediate discontinuation and close monitoring (5.4) • Metabolic Changes: Atypical antipsychotics have been associated with metabolic changes. These metabolic changes include hyperglycemia, dyslipidemia, and weight gain (5.5) • Hyperglycemia and Diabetes Mellitus: Monitor patients for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia, and weakness. Monitor glucose regularly in patients with diabetes or at risk for diabetes • Dyslipidemia: Undesirable alterations have been observed in patients treated with atypical antipsychotics. Appropriate clinical monitoring is recommended, including fasting blood lipid testing at the beginning of, and periodically, during treatment • Weight Gain: Gain in body weight has been observed; clinical monitoring of weight is recommended • Tardive Dyskinesia: Discontinue if clinically appropriate (5.6) • Hypotension: Use with caution in patients with known cardiovascular or cerebrovascular disease (5.7) • Increased Blood Pressure in Children and Adolescents: Monitor blood pressure at the beginning of, and periodically during treatment in children and adolescents (5.9) • Leukopenia, Neutropenia, and Agranulocytosis: Monitor complete blood count frequently during the first few months of treatment in patients with a pre-existing low white cell count or a history of leukopenia/neutropenia and discontinue quetiapine extended-release tablets at the first sign of a decline in WBC in absence of other causative factors (5.10) • Cataracts: Lens changes have been observed in patients during long-term quetiapine treatment. Lens examination is recommended when starting treatment and at 6-month intervals during chronic treatment (5.11) • Anticholinergic (antimuscarinic) Effects: Use with caution with other anticholinergic drugs and in patients with urinary retention, prostatic hypertrophy, or constipation (5.20) . 5.1 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. Analysis of 17 placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients. Over the course of a typical 10-week controlled trial, the rate of death in drug-treated patients was about 4.5%, compared to a rate of about 2.6% in the placebo group. Although the causes of death were varied, most of the deaths appeared to be either cardiovascular (e.g., heart failure, sudden death) or infectious (e.g., pneumonia) in nature. Observational studies suggest that, similar to atypical antipsychotic drugs, treatment with conventional antipsychotic drugs may increase mortality. The extent to which the findings of increased mortality in observational studies may be attributed to the antipsychotic drug as opposed to some characteristic(s) of the patients is not clear. Quetiapine extended-release tablets are not approved for the treatment of patients with dementia-related psychosis [see Boxed Warning ]. 5.2 Suicidal Thoughts and Behaviors in Adolescents and Young Adults Patients with major depressive disorder (MDD), both adult and pediatric, may experience worsening of their depression and/or the emergence of suicidal ideation and behavior (suicidality) or unusual changes in behavior, whether or not they are taking antidepressant medications, and this risk may persist until significant remission occurs. Suicide is a known risk of depression and certain other psychiatric disorders, and these disorders themselves are …

Adverse Reactions

openFDA Drug Labeling

6 ADVERSE REACTIONS The following adverse reactions are discussed in more detail in other sections of the labeling: Increased mortality in elderly patients with dementia-related psychosis [see Warnings and Precautions (5.1) ] Suicidal thoughts and behaviors in adolescents and young adults [see Warnings and Precautions (5.2) ] Cerebrovascular adverse reactions, including stroke in elderly patients with dementia-related psychosis [see Warnings and Precautions (5.3) ] Neuroleptic Malignant Syndrome (NMS) [see Warnings and Precautions (5.4) ] Metabolic changes (hyperglycemia, dyslipidemia, weight gain) [see Warnings and Precautions (5.5) ] Tardive dyskinesia [see Warnings and Precautions (5.6) ] Hypotension [see Warnings and Precautions (5.7) ] Falls [see Warnings and Precautions (5.8) ] Increases in blood pressure (children and adolescents) [see Warnings and Precautions (5.9) ] Leukopenia, neutropenia and agranulocytosis [see Warnings and Precautions (5.10) ] Cataracts [see Warnings and Precautions (5.11) ] QT Prolongation [see Warnings and Precautions (5.12) ] Seizures [see Warnings and Precautions (5.13) ] Hypothyroidism [see Warnings and Precautions (5.14) ] Hyperprolactinemia [see Warnings and Precautions (5.15 )] Potential for cognitive and motor impairment [see Warnings and Precautions (5.16) ] Body temperature regulation [see Warnings and Precautions (5.17) ] Dysphagia [see Warnings and Precautions (5.18) ] Discontinuation Syndrome [see Warnings and Precautions (5.19) ] Anticholinergic (antimuscarinic) Effects [see Warnings and Precautions, (5.20) ] Most common adverse reactions (incidence ≥5% and twice placebo): Adults: somnolence, dry mouth, constipation, dizziness, increased appetite, dyspepsia, weight gain, fatigue, dysarthria, and nasal congestion ( 6.1 ) Children and Adolescents: somnolence, dizziness, fatigue, increased appetite, nausea, vomiting, dry mouth, tachycardia, weight increased ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Unichem Pharmaceuticals (USA), Inc., at 1-866-562-4616 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Studies Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Adults The information below is derived from a clinical trial database for quetiapine extended-release tablets consisting of approximately 3400 patients exposed to quetiapine extended-release tablets for the treatment of Schizophrenia, Bipolar Disorder, and Major Depressive Disorder in placebo-controlled trials. This experience corresponds to approximately 1020.1 patient-years. Adverse reactions were assessed by collecting adverse reactions, results of physical examinations, vital signs, body weights, laboratory analyses, and ECG results. The stated frequencies of adverse reactions represent the proportion of individuals who experienced, at least once, an adverse reaction of the type listed. Adverse Reactions Associated with Discontinuation of Treatment in Short-Term, Placebo-Controlled Trials: Schizophrenia: There were no adverse reactions leading to discontinuation that occurred at an incidence of ≥2% for quetiapine extended-release tablets in schizophrenia trials. Bipolar I Disorder, Manic or Mixed Episodes: There were no adverse reactions leading to discontinuation that occurred at an incidence of ≥2% for quetiapine extended-release tablets in the bipolar mania trial. Bipolar Disorder, Depressive Episode: In a single clinical trial in patients with bipolar depression, 14% (19/137) of patients on quetiapine extended-release tablets discontinued due to an adverse reaction compared to 4% (5/140) on placebo. Somnolence was the only adverse reaction leading to discontinuation that occurred at an incidence of ≥2% in quetiapine extended-release tablets in the bipolar depression t …

Drug Interactions

openFDA Drug Labeling

7 DRUG INTERACTIONS • Concomitant use of strong: CYP3A4 inhibitors Reduce quetiapine dose to one-sixth when coadministered with strong CYP3A4 inhibitors (e.g., ketoconazole, ritonavir) ( 2.5 , 7.1 , 12.3 ) • Concomitant use of strong CYP3A4 inducers: Increase quetiapine dose up to 5 fold when used in combination with a chronic treatment (more than 7 to 14 days) of potent CYP3A4 inducers (e.g., phenytoin, rifampin, St. John’s wort) ( 2.6 , 7.1 , 12.3 ) • Discontinuation of strong CYP3A4 inducers: Reduce quetiapine dose by 5-fold within 7 to 14 days of discontinuation of CYP3A4 inducers ( 2.6 , 7.1 , 12.3 ) 7.1 Effect of Other Drugs on Quetiapine The risks of using quetiapine extended-release tablets in combination with other drugs have not been extensively evaluated in systematic studies. Given the primary CNS effects of quetiapine extended-release tablets, caution should be used when it is taken in combination with other centrally acting drugs. Quetiapine potentiated the cognitive and motor effects of alcohol in a clinical trial in subjects with selected psychotic disorders, and alcoholic beverages should be limited while taking quetiapine. Quetiapine exposure is increased by the prototype CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, indinavir, ritonavir, nefazodone, etc.) and decreased by the prototype of CYP3A4 inducers (e.g., phenytoin, carbamazepine, rifampin, avasimibe, St. John’s wort etc.). Dose adjustment of quetiapine will be necessary if it is co-administered with potent CYP3A4 inducers or inhibitors. CYP3A4 inhibitors: Coadministration of ketoconazole, a potent inhibitor of cytochrome CYP3A4, resulted in significant increase in quetiapine exposure. The dose should be reduced to one-sixth of the original dose in patients coadministered with a strong CYP3A4 inhibitor [see Dosage and Administration (2.5) and Clinical Pharmacology (12.3) ]. CYP3A4 inducers: Coadministration of quetiapine and phenytoin, a CYP3A4 inducer increased the mean oral clearance of quetiapine by 5-fold. Increased doses of quetiapine extended-release tablets up to 5-fold may be required to maintain control of symptoms of schizophrenia in patients receiving quetiapine and phenytoin, or other known potent CYP3A4 inducers [see Dosage and Administration (2.6) and Clinical Pharmacology (12.3) ]. When the CYP3A4 inducer is discontinued, the dose of quetiapine extended-release tablets should be reduced to the original level within 7 to 14 days [see Dosage and Administration (2.6) ]. Anticholinergic Drugs: Concomitant treatment with quetiapine and other drugs with anticholinergic activity can increase the risk for severe gastrointestinal adverse reactions related to hypomotility. Quetiapine extended-release tablets should be used with caution in patients receiving medications having anticholinergic (antimuscarinic) effects [see Warnings and Precautions (5.20)]. The potential effects of several concomitant medications on quetiapine pharmacokinetics were studied [see Clinical Pharmacology (12.3 ) ] . 7.2 Effect of Quetiapine on Other Drugs Because of its potential for inducing hypotension, quetiapine extended-release tablets may enhance the effects of certain antihypertensive agents. Quetiapine extended-release tablets may antagonize the effects of levodopa and dopamine agonists. There are no clinically relevant pharmacokinetic interactions of quetiapine tablets on other drugs based on the CYP pathway. Quetiapine tablets and its metabolites are non-inhibitors of major metabolizing CYP’s (1A2, 2C9, 2C19, 2D6, and 3A4).

Use in Specific Populations

openFDA Drug Labeling

8 USE IN SPECIFIC POPULATIONS Pregnancy: May cause extrapyramidal and/or withdrawal symptoms in neonates with third trimester exposure. ( 8.1 ) 8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to atypical antipsychotics, including quetiapine, during pregnancy. Healthcare providers are encouraged to register patients by contacting the National Pregnancy Registry for Atypical Antipsychotics at 1-866-961-2388 or online at http://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/ Risk Summary Neonates exposed to antipsychotic drugs, including quetiapine, during the third trimester are at risk for extrapyramidal and/or withdrawal symptoms following delivery (see Clinical Considerations) . Overall available data from published epidemiologic studies of pregnant women exposed to quetiapine have not established a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes (see Data) . There are risks to the mother associated with untreated schizophrenia, bipolar I, or major depressive disorder, and with exposure to antipsychotics, including, quetiapine extended-release tablets during pregnancy (see Clinical Considerations) . In animal studies, embryo-fetal toxicity occurred including delays in skeletal ossification at approximately 1 and 2 times the maximum recommended human dose (MRHD) of 800 mg/day in both rats and rabbits, and an increased incidence of carpal/tarsal flexure (minor soft tissue anomaly) in rabbit fetuses at approximately 2 times the MRHD. In addition, fetal weights were decreased in both species. Maternal toxicity (observed as decreased body weights and/or death) occurred at 2 times the MRHD in rats and approximately 1-2 times the MRHD in rabbits. The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Clinical Considerations Disease-associated maternal and/or fetal risk There is a risk to the mother from untreated schizophrenia, or bipolar I disorder, including increased risk of relapse, hospitalization, and suicide. Schizophrenia and bipolar I disorder are associated with increased adverse perinatal outcomes, including preterm birth. It is not known if this is a direct result of the illness or other comorbid factors. A prospective, longitudinal study followed 201 pregnant women with a history of major depressive disorder who were euthymic and taking antidepressants at the beginning of pregnancy. The women who discontinued antidepressants during pregnancy were more likely to experience a relapse of major depression than women who continued antidepressants. Consider the risk of untreated depression when discontinuing or changing treatment with antidepressant medication during pregnancy and postpartum. Fetal/neonatal adverse reactions Extrapyramidal and/or withdrawal symptoms, including agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, and feeding disorder have been reported in neonates who were exposed to antipsychotic drugs, including quetiapine, during the third trimester of pregnancy. These symptoms varied in severity. Monitor neonates for extrapyramidal and/or withdrawal symptoms and manage symptoms appropriately. Some neonates recovered within hours or days without specific treatment; others required prolonged hospitalization. Data Human Data Published data from observational studies, birth registries, and case reports on the use of atypical antipsychotics during pregnancy do not report a clear association with antipsychotics and major birth defects. A retrospective cohort study from a Medicaid database of 9258 women exposed to antips …

Mechanism of Action

openFDA Drug Labeling

12.1 Mechanism of Action The mechanism of action of quetiapine in the listed indications is unclear. However, the efficacy of quetiapine in these indications could be mediated through a combination of dopamine type 2 (D 2 ) and serotonin type 2A (5HT 2A ) antagonism. The active metabolite, N-desalkyl quetiapine (norquetiapine), has similar activity at D 2 , but greater activity at 5HT 2A receptors, than the parent drug (quetiapine).

Description

openFDA Drug Labeling

11 DESCRIPTION Quetiapine is an atypical antipsychotic belonging to a chemical class, the dibenzothiazepine derivatives. The chemical designation is 2-[2-(4-dibenzo [ b,f ] [1,4] thiazepin-11-yl-1-piperazinyl)ethoxy]-ethanol fumarate (2:1) (salt). It is present in tablets as the fumarate salt. All doses and tablet strengths are expressed as milligrams of base, not as fumarate salt. Its molecular formula is C 42 H 50 N 6 O 4 S 2 •C 4 H 4 O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: Quetiapine fumarate is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine extended-release tablets, USP, are supplied for oral administration as 50 mg (pink), 150 mg (white), 200 mg (yellow), 300 mg (yellow) and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for quetiapine extended-release tablets are hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and sodium citrate. Inactive ingredients of the film coats are slightly different among the 5 strengths of tablets and are tabulated below: Strength Inactive ingredients of the film coat 50 mg polyvinyl alcohol-part. hydrolyzed, polyethylene glycol, titanium dioxide, talc, lecithin (soya) and Iron oxide red 150 mg polyvinyl alcohol-part. hydrolyzed, polyethylene glycol, titanium dioxide, talc and lecithin (soya) 200 mg polyvinyl alcohol-part. hydrolyzed, polyethylene glycol, titanium dioxide, talc, D&C Yellow #10 Aluminum Lake and Iron oxide red 300 mg polyvinyl alcohol-part. hydrolyzed, polyethylene glycol, titanium dioxide, talc and iron oxide yellow 400 mg polyvinyl alcohol-part. hydrolyzed, polyethylene glycol, titanium dioxide, talc and lecithin (soya) Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 150 mg tablet contains 172.69 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.38 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.50 mg of quetiapine fumarate equivalent to 400 mg quetiapine. FDA approved dissolution test specifications differ from USP. structural formula

10 OVERDOSAGE 10.1 Human Experience In clinical trials, survival has been reported in acute overdoses of up to 30 grams of quetiapine. Most patients who overdosed experienced no adverse reactions or recovered fully from the reported events. Death has been reported in a clinical trial following an overdose of 13.6 grams of quetiapine alone. In general, reported signs and symptoms were those resulting from an exaggeration of the drug’s known pharmacological effects, i.e., drowsiness, sedation, tachycardia, hypotension, and anticholinergic toxicity including coma and delirium. Patients with pre-existing severe cardiovascular disease may be at an increased risk of the effects of overdose [see Warnings and Precautions (5.12) ]. One case, involving an estimated overdose of 9,600 mg, was associated with hypokalemia and first degree heart block. In post-marketing experience, there were cases reported of QT prolongation with overdose. 10.2 Management of Overdosage Establish and maintain an airway and ensure adequate oxygenation and ventilation. Cardiovascular monitoring should commence immediately and should include continuous electrocardiographic monitoring to detect possible arrhythmias. Appropriate supportive measures are the mainstay of management. For the most up-to-date information on the management of quetiapine extended-release tablets overdosage, contact a certified Regional Poison Control Center (1-800-222-1222). Quetiapine extended-release tablets overdose may lead to gastric bezoar formation and appropriate diagnostic imaging is recommended to further guide patient management. Routine gastric lavage may not be effective in the removal of the bezoar due to gum like sticky consistency of the mass. Endoscopic pharmacobezoar removal has been performed successfully.

How Supplied / Storage and Handling

openFDA Drug Labeling

16 HOW SUPPLIED/STORAGE AND HANDLING Quetiapine extended-release tablets,USP 150 mg 150 mg tablets are white to off white colored, capsule shaped, film coated tablets debossed with 'C 22' on one side and plain on the other side and are available as follows: Bottles of 60 tablets NDC 33342-134-09 Bottles of 500 tablets NDC 33342-134-15 Quetiapine extended-release tablets,USP 200 mg 200 mg tablets are yellow colored, capsule shaped, film coated tablets debossed with 'C 23' on one side and plain on the other side and are available as follows: Bottles of 60 tablets NDC 33342-135-09 Bottles of 500 tablets NDC 33342-135-15 Quetiapine extended-release tablets,USP 300 mg 300 mg tablets are pale yellow colored, capsule shaped, film coated tablets debossed with 'C 24' on one side and plain on the other side and are available as follows: Bottles of 60 tablets NDC 33342-136-09 Bottles of 500 tablets NDC 33342-136-15 Quetiapine extended-release tablets,USP 400 mg 400 mg tablets are white to off white colored, capsule shaped, film coated tablets debossed with 'C 25' on one side and plain on the other side and are available as follows: Bottles of 60 tablets NDC 33342-137-09 Bottles of 500 tablets NDC 33342-137-15 Store at 20o to 25o C (68o to 77o F); excursions permitted to 15o to 30o C (59o to 86o F) [See USP Controlled Room Temperature].

Adverse event reports

Source: openFDA FAERS
191,482
FAERS reports mentioning this drug
as of 2026-09-25T03:42:24+00:00
A report count is not a risk measure. FAERS accepts voluntary and mandatory reports without establishing causation, and reporting is influenced by how widely a drug is used, how long it has been marketed, and media attention. FDA states that reports “do not prove that the drug caused the event”. Compare rates, not totals.

Attributed to this product's most-reported active ingredient: QUETIAPINE. Combination products with more than six active ingredients are not attributed, because a report count summed across a long ingredient list measures the list, not the medicine.

Packaging and NDCs

Source: NDC Directory
Every National Drug Code package associated with this medication. The NDC is the identifier used for dispensing, billing and pharmacovigilance in the United States.
Package NDC Product NDC Labeler Description Marketing start
0310-0505-10 0310-0505 AstraZeneca Pharmaceuticals LP 20000 TABLET, EXTENDED RELEASE in 1 BAG (0310-0505-10) April 22, 2022
0310-0515-10 0310-0515 AstraZeneca Pharmaceuticals LP 17391 TABLET, EXTENDED RELEASE in 1 BAG (0310-0515-10) April 22, 2022
0310-0520-10 0310-0520 AstraZeneca Pharmaceuticals LP 16667 TABLET, EXTENDED RELEASE in 1 BAG (0310-0520-10) April 22, 2022
0310-0530-10 0310-0530 AstraZeneca Pharmaceuticals LP 12500 TABLET, EXTENDED RELEASE in 1 BAG (0310-0530-10) April 22, 2022
0310-0540-10 0310-0540 AstraZeneca Pharmaceuticals LP 11494 TABLET, EXTENDED RELEASE in 1 BAG (0310-0540-10) April 22, 2022
68001-598-06 68001-598 BluePoint Laboratories 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (68001-598-06) November 28, 2023
68001-599-06 68001-599 BluePoint Laboratories 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (68001-599-06) November 28, 2023
68001-600-06 68001-600 BluePoint Laboratories 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (68001-600-06) November 28, 2023
68001-601-06 68001-601 BluePoint Laboratories 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (68001-601-06) November 28, 2023
68001-602-06 68001-602 BluePoint Laboratories 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (68001-602-06) November 1, 2023
63629-5944-1 63629-5944 Bryant Ranch Prepack 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (63629-5944-1) June 2, 2025
71335-2641-1 71335-2641 Bryant Ranch Prepack 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (71335-2641-1) June 2, 2025
67046-1623-3 67046-1623 Coupler LLC 30 TABLET, EXTENDED RELEASE in 1 BLISTER PACK (67046-1623-3) December 16, 2025
33342-134-09 33342-134 Macleods Pharmaceuticals Limited 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-134-09) November 1, 2017
33342-134-15 33342-134 Macleods Pharmaceuticals Limited 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-134-15) November 1, 2017
33342-135-09 33342-135 Macleods Pharmaceuticals Limited 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-135-09) November 1, 2017
33342-135-15 33342-135 Macleods Pharmaceuticals Limited 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-135-15) November 1, 2017
33342-136-09 33342-136 Macleods Pharmaceuticals Limited 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-136-09) November 1, 2017
33342-136-15 33342-136 Macleods Pharmaceuticals Limited 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-136-15) November 1, 2017
33342-137-09 33342-137 Macleods Pharmaceuticals Limited 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-137-09) November 1, 2017
33342-137-15 33342-137 Macleods Pharmaceuticals Limited 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (33342-137-15) November 1, 2017
70518-4430-0 70518-4430 REMEDYREPACK INC. 60 TABLET, EXTENDED RELEASE in 1 BLISTER PACK (70518-4430-0) August 12, 2025
70518-4430-1 70518-4430 REMEDYREPACK INC. 30 TABLET, EXTENDED RELEASE in 1 BLISTER PACK (70518-4430-1) August 12, 2025
70518-4437-0 70518-4437 REMEDYREPACK INC. 30 TABLET, EXTENDED RELEASE in 1 BLISTER PACK (70518-4437-0) August 13, 2025
70518-4699-0 70518-4699 REMEDYREPACK INC. 30 TABLET, EXTENDED RELEASE in 1 BLISTER PACK (70518-4699-0) July 15, 2026
70518-4700-0 70518-4700 REMEDYREPACK INC. 30 TABLET, EXTENDED RELEASE in 1 BLISTER PACK (70518-4700-0) July 17, 2026
43547-019-06 43547-019 Solco Healthcare U.S., LLC 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-019-06) April 1, 2022
43547-019-50 43547-019 Solco Healthcare U.S., LLC 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-019-50) April 1, 2022
43547-020-06 43547-020 Solco Healthcare U.S., LLC 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-020-06) April 1, 2022
43547-020-50 43547-020 Solco Healthcare U.S., LLC 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-020-50) April 1, 2022
43547-021-06 43547-021 Solco Healthcare U.S., LLC 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-021-06) April 1, 2022
43547-021-50 43547-021 Solco Healthcare U.S., LLC 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-021-50) April 1, 2022
43547-022-06 43547-022 Solco Healthcare U.S., LLC 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-022-06) April 1, 2022
43547-022-50 43547-022 Solco Healthcare U.S., LLC 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-022-50) April 1, 2022
43547-023-06 43547-023 Solco Healthcare U.S., LLC 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-023-06) April 1, 2022
43547-023-50 43547-023 Solco Healthcare U.S., LLC 500 TABLET, EXTENDED RELEASE in 1 BOTTLE (43547-023-50) April 1, 2022
29300-308-16 29300-308 Unichem Pharmaceuticals (USA), Inc. 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (29300-308-16) September 12, 2022
29300-309-16 29300-309 Unichem Pharmaceuticals (USA), Inc. 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (29300-309-16) September 12, 2022
29300-310-16 29300-310 Unichem Pharmaceuticals (USA), Inc. 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (29300-310-16) September 12, 2022
29300-311-16 29300-311 Unichem Pharmaceuticals (USA), Inc. 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (29300-311-16) September 12, 2022
29300-312-16 29300-312 Unichem Pharmaceuticals (USA), Inc. 60 TABLET, EXTENDED RELEASE in 1 BOTTLE (29300-312-16) September 12, 2022
0310-0505 0310-0505 AstraZeneca Pharmaceuticals LP — April 22, 2022
0310-0515 0310-0515 AstraZeneca Pharmaceuticals LP — April 22, 2022
0310-0520 0310-0520 AstraZeneca Pharmaceuticals LP — April 22, 2022
0310-0530 0310-0530 AstraZeneca Pharmaceuticals LP — April 22, 2022
0310-0540 0310-0540 AstraZeneca Pharmaceuticals LP — April 22, 2022
68001-598 68001-598 BluePoint Laboratories — November 1, 2023
68001-599 68001-599 BluePoint Laboratories — November 1, 2023
68001-600 68001-600 BluePoint Laboratories — November 1, 2023
68001-601 68001-601 BluePoint Laboratories — November 1, 2023
68001-602 68001-602 BluePoint Laboratories — November 1, 2023
63629-5944 63629-5944 Bryant Ranch Prepack — November 1, 2017
71335-2641 71335-2641 Bryant Ranch Prepack — August 15, 2022
67046-1623 67046-1623 Coupler LLC — December 16, 2025
33342-134 33342-134 Macleods Pharmaceuticals Limited — November 1, 2017
33342-135 33342-135 Macleods Pharmaceuticals Limited — November 1, 2017
33342-136 33342-136 Macleods Pharmaceuticals Limited — November 1, 2017
33342-137 33342-137 Macleods Pharmaceuticals Limited — November 1, 2017
70518-4430 70518-4430 REMEDYREPACK INC. — August 12, 2025
70518-4437 70518-4437 REMEDYREPACK INC. — August 13, 2025
70518-4699 70518-4699 REMEDYREPACK INC. — July 15, 2026
70518-4700 70518-4700 REMEDYREPACK INC. — July 17, 2026
43547-019 43547-019 Solco Healthcare U.S., LLC — April 1, 2022
43547-020 43547-020 Solco Healthcare U.S., LLC — April 1, 2022
43547-021 43547-021 Solco Healthcare U.S., LLC — April 1, 2022
43547-022 43547-022 Solco Healthcare U.S., LLC — April 1, 2022
43547-023 43547-023 Solco Healthcare U.S., LLC — April 1, 2022
29300-308 29300-308 Unichem Pharmaceuticals (USA), Inc. — August 15, 2022
29300-309 29300-309 Unichem Pharmaceuticals (USA), Inc. — August 15, 2022
29300-310 29300-310 Unichem Pharmaceuticals (USA), Inc. — August 15, 2022
29300-311 29300-311 Unichem Pharmaceuticals (USA), Inc. — August 15, 2022
29300-312 29300-312 Unichem Pharmaceuticals (USA), Inc. — August 15, 2022

Sources for this page

Every dataset that contributed a fact to this page.
Dataset Agency Used for
NDC Directory FDA Identity, ingredients, strengths, forms, routes, labelers, packages
Drugs@FDA FDA Application, sponsor, submissions, review documents, marketing status
Orange Book FDA Therapeutic equivalence codes, reference drug flags, patents, exclusivity
Drug Labeling FDA / NLM Prescribing information reproduced above
FAERS FDA Adverse event report counts

Generated September 25, 2026 · 12 sections on this page.