SEROQUEL

WARNINGS AND PRECAUTIONS ( 5.15 ) 1/2025

1 INDICATIONS AND USAGE SEROQUEL XR is 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 SEROQUEL XR is indicated for the treatment of schizophrenia. The efficacy of SEROQUEL XR 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 (13-17 years) treated with SEROQUEL [see Clinical Studies (14.1) ]. 1.2 Bipolar Disorder SEROQUEL XR is 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 SEROQUEL XR 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 - 17 years) with manic episodes associated with bipolar I disorder treated with SEROQUEL [see Clinical Studies (14.2) ]. SEROQUEL XR is indicated for the acute treatment of depressive episodes associated with bipolar disorder. The efficacy of SEROQUEL XR 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 SEROQUEL [see Clinical Studies (14.2) ]. SEROQUEL XR is 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 SEROQUEL. 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) SEROQUEL XR is indicated for use as adjunctive therapy to antidepressants for the treatment of MDD. The efficacy of SEROQUEL XR 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.

2 DOSAGE AND 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 400-800 mg/day 800 mg/day Schizophrenia - Adolescents (13 to 17 years) (2.2) 50 mg/day 400-800 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 400-800 mg/day 800 mg/day Bipolar I Disorder, manic Acute monotherapy - Children and Adolescents (10 to 17 years) (2.2) 50 mg/day 400-600 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 150-300 mg/day 300 mg/day 2.1 Important Administration Instructions SEROQUEL XR tablets should be swallowed whole and not split, chewed, or crushed. It is recommended that SEROQUEL XR be taken without food or with a light meal (approximately 300 calories) [see Clinical Pharmacology (12.3) ]. SEROQUEL XR should be administered once daily, preferably in the evening. 2.2 Recommended Dosing The recommended initial dose, titration, dose range and maximum SEROQUEL XR 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 SEROQUEL XR 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 400-800 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 400-800 mg/day 800 mg/day Schizophrenia Maintenance - Monotherapy - Adults Not applicable 400-800 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 400-800 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 400-600 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 400-800 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 150-300 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 performed with caution in these patients. Elderly patients should be started on SEROQUEL XR 50 mg/day and the dose can be increased in increments of 50 mg/day dep …

3 DOSAGE FORMS AND STRENGTHS • 50 mg extended-release tablets are peach, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 50” on one side and plain on the other side • 150 mg extended-release tablets are white, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 150” on one side and plain on the other side • 200 mg extended-release tablets are yellow, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 200” on one side and plain on the other side • 300 mg extended-release tablets are pale yellow, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 300” on one side and plain on the other side • 400 mg extended-release tablets are white, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 400” on one side and plain on the other side Extended-Release Tablets: 50 mg, 150 mg, 200 mg, 300 mg, and 400 mg (3)

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

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 AstraZeneca at 1-800-236-9933 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 SEROQUEL XR consisting of approximately 3400 patients exposed to SEROQUEL XR 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 SEROQUEL XR 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 SEROQUEL XR 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 SEROQUEL XR discontinued due to an adverse reaction compared to 4% (5/140) on placebo. Somnolence 2 was the only adverse reaction leading to discontinuation that occurred at an incidence of ≥2% in SEROQUEL XR in the bipolar depression trial. MDD, Adjunctive Therapy: In adjunctive therapy clinical trials in patients with MDD, 12.1% (76/627) of patients on SEROQUEL X …

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 7-14 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 7-14 days of discontinuation of CYP3A4 inducers ( 2.6 , 7.1 , 12.3 ) 7.1 Effect of Other Drugs on Quetiapine The risks of using SEROQUEL XR in combination with other drugs have not been extensively evaluated in systematic studies. Given the primary CNS effects of SEROQUEL XR, 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 SEROQUEL XR 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 SEROQUEL XR should be reduced to the original level within 7-14 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. SEROQUEL 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, SEROQUEL XR may enhance the effects of certain antihypertensive agents. SEROQUEL XR may antagonize the effects of levodopa and dopamine agonists. There are no clinically relevant pharmacokinetic interactions of Seroquel on other drugs based on the CYP pathway. Seroquel and its metabolites are non-inhibitors of major metabolizing CYP’s (1A2, 2C9, 2C19, 2D6, and 3A4).

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 SEROQUEL XR, 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 SEROQUEL XR, 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, SEROQUEL XR 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 SEROQUEL XR, 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 antipsychotics during pr …

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).

11 DESCRIPTION SEROQUEL XR (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. SEROQUEL XR is supplied for oral administration as 50 mg (peach), 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for SEROQUEL XR are lactose monohydrate, microcrystalline cellulose, sodium citrate, hypromellose, and magnesium stearate. The film coating for all SEROQUEL XR tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, yellow iron oxide (50, 200 and 300 mg tablets) and red iron oxide (50 mg tablets) are included in the film coating of specific strengths. 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. 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 9600 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 Seroquel XR overdosage, contact a certified Regional Poison Control Center (1-800-222-1222). SEROQUEL XR 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.

16 HOW SUPPLIED/STORAGE AND HANDLING • 50 mg Tablets (NDC 0310-0280-60) peach, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 50” on one side and plain on the other are supplied in bottles of 60 tablets. • 150 mg Tablets (NDC 0310-0281-60) white, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 150” on one side and plain on the other are supplied in bottles of 60 tablets. • 200 mg Tablets (NDC 0310-0282-60) yellow, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 200” on one side and plain on the other are supplied in bottles of 60 tablets. • 300 mg Tablets (NDC 0310-0283-60) pale yellow, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 300” on one side and plain on the other are supplied in bottles of 60 tablets. • 400 mg Tablets (NDC 0310-0284-60) white, film-coated, capsule-shaped, biconvex, intagliated tablet with “XR 400” on one side and plain on the other are supplied in bottles of 60 tablets. Store SEROQUEL XR at 25oC (77oF); excursions permitted to 15-30oC (59-86oF) [See USP].