For your patients with schizophrenia

SEROQUEL XR® (quetiapine fumarate) helps improve symptoms in patients with schizophrenia and helps delay relapse over the longer term.1-3

SEROQUEL XR may help improve symptoms in patients with schizophrenia

The efficacy of SEROQUEL XR to help in the treatment of schizophrenia was demonstrated in a short-term, 6-week, fixed-dose, placebo-controlled trial of inpatients and outpatients with schizophrenia.1,3 SEROQUEL XR demonstrated significant symptom improvement in PANSS (Positive and Negative Syndrome Scale) Total Score.1,3

Improvement in PANSS Total Score at Week 61,a

Schizophrenia Efficacy: Improvement in PANSS Total Score at Week 6

aData from a single 6-week, randomized, double-blind, placebo-controlled schizophrenia trial.

bP<0.05 vs placebo.

cP<0.001 vs placebo.

LSM=least squares mean.

MITT=modified intention to treat.

LOCF=last observation carried forward.

SEROQUEL XR may help delay relapse in patients with schizophrenia

The longer-term benefit of maintaining patients on monotherapy with SEROQUEL XR after achieving a responder status for 16 weeks was demonstrated in a controlled trial.2,3 Significantly more patients with schizophrenia were relapse-free when maintained on SEROQUEL XR vs placebo.2

Time to relapse (interim ITT)2,3,d,e,f,g

Schizophrenia Efficacy: Time to Relapse (Interim ITT)


eData from a 1-year, multicenter, randomized, double-blind, parallel-group, placebo-controlled study of stabilized outpatients with chronic schizophrenia.

fThis study was 2-phased. First, patients entered a 16-week, open-label stabilization phase during which they were given SEROQUEL XR flexibly dosed between 400 mg/day and 800 mg/day. After the 16-week stabilization phase, patients were then randomized to either continue on SEROQUEL XR (mean dose: 669 mg/day) or switch to placebo for a period of up to 1 year. However, the study was terminated after 6 months, when an interim analysis showed a significant difference between SEROQUEL XR and placebo groups.


Based on the results of a preplanned interim analysis, the study was terminated after the first 45 relapses. The analysis showed a significant difference between the SEROQUEL XR and placebo groups.2

  • 84% reduction in risk of relapse vs placebo2
  • Hazard ratio: 0.16; P<0.0001. Number of patients who relapsed was 9 (10.7%) for SEROQUEL XR vs 36 (41.4%) for placebo2
  • During this trial, SEROQUEL XR maintained greater symptom improvement in patients with schizophrenia vs placebo as demonstrated by PANSS Total Score (P<0.01) and Positive and Negative Subscale Scores (P<0.05)2,h
  • Safety findings of this longer term trial were generally consistent with those of short-term trials in schizophrenia3

hNumber of patients with a score at randomization and at least 1 postrandomization score, not including relapse, with SEROQUEL XR (n=94) vs placebo (n=103) (total intent-to-treat population).

Important Safety Information About SEROQUEL XR

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. SEROQUEL XR is not approved for the treatment of patients with dementia-related psychosis.

Suicidal Thoughts and Behavior:
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. 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. SEROQUEL XR is not approved for use in pediatric patients under ten years of age.

Hypersensitivity to quetiapine or to any excipients in the SEROQUEL XR formulation. Anaphylactic reactions have been reported in patients treated with SEROQUEL XR.

Cerebrovascular Adverse Reactions, Including Stroke, in Elderly Patients with Dementia-Related Psychosis: In placebo-controlled trials with risperidone, aripiprazole, and olanzapine in elderly subjects with dementia, there was a higher incidence of cerebrovascular adverse reactions (cerebrovascular accidents and transient ischemic attacks), including fatalities, compared to placebo-treated subjects. SEROQUEL XR is not approved for the treatment of patients with dementia-related psychosis.

Neuroleptic Malignant Syndrome (NMS): A potentially fatal symptom complex, sometimes referred to as NMS, has been reported in association with administration of antipsychotic drugs, including SEROQUEL XR. Rare cases of NMS have been reported with SEROQUEL XR. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status, and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis, and cardiac dysrhythmia). Additional signs may include elevated creatine phosphokinase, myoglobinuria (rhabdomyolysis), and acute renal failure. Management should include immediate discontinuation of antipsychotic drugs and other drugs not essential to concurrent therapy, intensive symptomatic treatment, and medical monitoring, and treatment of any concomitant serious medical problems.

Metabolic Changes:
Atypical antipsychotic drugs have been associated with metabolic changes that include hyperglycemia/diabetes mellitus, dyslipidemia, and body weight gain. In some patients, a worsening of more than one of the metabolic parameters of weight, blood glucose, and lipids was observed in clinical studies. Changes in these metabolic profiles should be managed as clinically appropriate.

Hyperglycemia and Diabetes Mellitus: Hyperglycemia, in some cases extreme and associated with ketoacidosis, hyperosmolar coma, or death, has been reported in patients treated with atypical antipsychotics, including SEROQUEL XR. The relationship of atypical use and glucose abnormalities is complicated by the possibility of increased risk of diabetes in the schizophrenic population and the increasing incidence of diabetes in the general population. However, epidemiological studies suggest an increased risk of treatment-emergent, hyperglycemia-related adverse reactions in patients treated with atypical antipsychotics. Patients starting treatment with atypical antipsychotics who have or are at risk for diabetes should undergo fasting blood glucose testing at the beginning of and periodically during treatment. Patients who develop symptoms of hyperglycemia should also undergo fasting blood glucose testing. Any patient treated with atypical antipsychotics should be monitored for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia, and weakness. In some cases, hyperglycemia has resolved when the atypical antipsychotic was discontinued; however, some patients required continuation of antidiabetic treatment despite discontinuation of the suspect drug.

Dyslipidemia: Undesirable alterations in lipids have been observed with SEROQUEL XR use. Increases in total cholesterol, LDL-cholesterol and triglycerides, and decreases in HDL-cholesterol have been reported in clinical trials. Appropriate clinical monitoring is recommended, including fasting blood lipid testing at the beginning of and periodically during treatment.

Weight Gain: Increases in weight have been observed in clinical trials. Patients receiving SEROQUEL XR should receive regular monitoring of weight.

Tardive Dyskinesia (TD): TD, a potentially irreversible syndrome of involuntary dyskinetic movements, may develop in patients treated with antipsychotic drugs. The risk of developing TD and the likelihood that it will become irreversible are believed to increase as the duration of treatment and total cumulative dose of antipsychotic drugs administered to the patient increase. Although much less commonly, TD can develop after relatively brief treatment periods at low doses or even after treatment discontinuation. TD may remit, partially or completely, if antipsychotic treatment is withdrawn. SEROQUEL XR should be prescribed in a manner that is most likely to minimize the occurrence of TD, and discontinuation should be considered if signs and symptoms of TD occur.

Hypotension: SEROQUEL XR may induce orthostatic hypotension with associated dizziness, tachycardia, and syncope, especially during the initial dose titration period and should be used with caution in patients predisposed to hypotension or with known cardiovascular or cerebrovascular disease.

Falls: SEROQUEL XR may cause somnolence, postural hypotension, or motor and sensory instability which may lead to falls, and consequently, fractures or other injuries. When initiating antipsychotic treatment or periodically during long-term therapy, complete fall risk assessments for patients with diseases, conditions or taking medications that may exacerbate these effects.

Leukopenia, Neutropenia, and Agranulocytosis: Leukopenia, neutropenia, and agranulocytosis (including fatal cases), have been reported temporally related to atypical antipsychotics, including SEROQUEL XR. Patients with a pre-existing low white blood cell (WBC) count or a history of drug-induced leukopenia/neutropenia should have their complete blood count monitored frequently during the first few months of therapy. In these patients, SEROQUEL XR should be discontinued at the first sign of a decline in WBC absent other causative factors. Patients with neutropenia should be carefully monitored, and SEROQUEL XR should be discontinued in any patient if the absolute neutrophil count is <1000/mm3.

Cataracts: Examination of the lens by methods adequate to detect cataract formation, such as slit lamp exam or other appropriately sensitive methods, is recommended at initiation of treatment or shortly thereafter, and at 6-month intervals during chronic treatment.

QT Prolongation: Postmarketing cases show increases in QT interval in patients who overdosed on quetiapine, in patients with concomitant illness, and in patients taking medicines known to cause electrolyte imbalance or increase the QT interval. Avoid use with drugs that increase the QT interval and in patients with risk factors for prolonged QT interval.

Seizures: SEROQUEL XR should be used cautiously in patients with a history of seizures or with conditions that potentially lower the seizure threshold (eg, Alzheimer’s dementia).

Potential for Cognitive and Motor Impairment: Since SEROQUEL XR has the potential to impair judgment, thinking, or motor skills, patients should be cautioned about performing activities requiring mental alertness, such as operating a motor vehicle or operating hazardous machinery, until they are reasonably certain that SEROQUEL XR therapy does not affect them adversely.

Body Temperature Regulation: Disruption of the body’s ability to reduce core body temperature has been attributed to antipsychotics. Appropriate care is advised for patients who may exercise strenuously, be exposed to extreme heat, receive concomitant medication with anticholinergic activity, or be subject to dehydration.

Dysphagia: Esophageal dysmotility and aspiration have been associated with antipsychotic drug use. Use caution in patients at risk for aspiration pneumonia. Aspiration pneumonia is a common cause of morbidity and mortality in elderly patients, in particular those with advanced Alzheimer's dementia.

Warnings and Precautions Also Include: The risk of hypothyroidism, hyperprolactinemia, and discontinuation syndrome.

Common Adverse Reactions: The most commonly observed adverse reactions (incidence ≥5% and twice placebo) associated with the use of SEROQUEL XR versus placebo in clinical trials for all adult indications were somnolence (25%-52% vs 9%-13%), dry mouth (12%-40% vs 1%-8%), constipation (6%-11% vs 3%-6%), dizziness (10%-13% vs 4%-11%), increased appetite (2%-12% vs 0%-6%), dyspepsia (2%-7% vs 1%-4%), weight gain (3%-7% vs 0%-1%), fatigue (3%-14% vs 2%-4%), dysarthria (2%-5% vs 0%), and nasal congestion (2%-5% vs 1%).


SEROQUEL XR is indicated in adults for (1) adjunctive therapy to antidepressants in major depressive disorder; (2) acute depressive episodes in bipolar disorder; (3) acute manic or mixed episodes in bipolar I disorder, as either monotherapy or adjunct therapy to lithium or divalproex; (4) maintenance treatment of bipolar I disorder as an adjunct to lithium or divalproex; and (5) schizophrenia. Patients should be periodically reassessed to determine the need for treatment and the appropriate dose.

Please read full Prescribing Information for SEROQUEL XR, including Boxed WARNINGS.

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  1. Kahn RS, Schulz SC, Palazov VD, et al; Study 132 Investigators. Efficacy and tolerability of once-daily extended release quetiapine fumarate in acute schizophrenia: a randomized, double-blind, placebo-controlled study. J Clin Psychiatry. 2007;68(6):832-842.
  2. Peuskens J, Trivedi J, Malyarov S, et al; Study D1444C00004 Investigators. Prevention of schizophrenia relapse with extended release quetiapine fumarate dosed once daily: a randomized, placebo-controlled trial in clinically stable patients. Psychiatry (Edgemont). 2007;4(11):34-50.
  3. Prescribing Information for SEROQUEL XR. AstraZeneca Pharmaceuticals LP, Wilmington, DE.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit or call 1‑800‑FDA‑1088.1‑800‑FDA‑1088.

SEROQUEL XR provides symptom relief in patients with schizophrenia.
Learn about the safety of SEROQUEL XR in schizophrenia.
SEROQUEL XR should be dosed in the evening, eg, within 3-4 hours before bedtime.