Quetiapine Fumarate: Package Insert and Label Information

QUETIAPINE FUMARATE- quetiapine fumarate tablet
REMEDYREPACK INC.

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 is 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 is not approved for use in pediatric patients under ten years of age [see USE IN SPECIFIC POPULATIONS ( 8.4)].

1 INDICATIONS AND USAGE

1.1 Schizophrenia

Quetiapine tablets USP are indicated for the treatment of schizophrenia. The efficacy of quetiapine tablets USP in schizophrenia was established in three 6-week trials in adults and one 6-week trial in adolescents (13 to 17 years). The effectiveness of quetiapine tablets USP for the maintenance treatment of schizophrenia has not been systematically evaluated in controlled clinical trials [see CLINICAL STUDIES ( 14.1)].

1.2 Bipolar Disorder

Quetiapine tablets USP are indicated for the acute treatment of manic episodes associated with bipolar I disorder, both as monotherapy and as an adjunct to lithium or divalproex. Efficacy was established in two 12-week monotherapy trials in adults, in one 3-week adjunctive trial in adults, and in one 3-week monotherapy trial in pediatric patients (10 to 17 years) [see CLINICAL STUDIES ( 14.2)].

Quetiapine tablets USP are indicated as monotherapy for the acute treatment of depressive episodes associated with bipolar disorder. Efficacy was established in two 8-week monotherapy trials in adult patients with bipolar I and bipolar II disorder [see CLINICAL STUDIES ( 14.2)].

Quetiapine tablets USP are indicated for the maintenance treatment of bipolar I disorder, as an adjunct to lithium or divalproex. Efficacy was established in two maintenance trials in adults. The effectiveness of quetiapine tablets USP as monotherapy for the maintenance treatment of bipolar disorder has not been systematically evaluated in controlled clinical trials [see CLINICAL STUDIES ( 14.2)].

1.3 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

2.1 Important Administration Instructions

Quetiapine tablets USP can be taken with or without food.

2.2 Recommended Dosing

The recommended initial dose, titration, dose range and maximum quetiapine dose for each approved indication is displayed in Table 1. 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 and 14.2)].

Table 1: Recommended Dosing for Quetiapine Tablets USP
Indication Initial Dose and Titration Recommended Dose Maximum Dose
Schizophrenia-Adults Day 1: 25 mg twice daily. Increase in increments of 25 mg to 50 mg divided two or three times on Days 2 and 3 to range of 300 to 400 mg by Day 4. Further adjustments can be made in increments of 25 to 50 mg twice a day, in intervals of not less than 2 days. 150 to 750 mg/day 750 mg/day
Schizophrenia-Adolescents (13 to 17 years) Day 1: 25 mg twice daily. Day 2: Twice daily dosing totaling 100 mg. Day 3: Twice daily dosing totaling 200 mg. Day 4: Twice daily dosing totaling 300 mg. Day 5: Twice daily dosing totaling 400 mg. Further adjustments should be in increments no greater than 100 mg/day within the recommended dose range of 400 to 800 mg/day. Based on response and tolerability, may be administered three times daily. 400 to 800 mg/day 800 mg/day
Schizophrenia-Maintenance Not applicable 400 to 800 mg/day 800 mg/day
Bipolar Mania- Adults Monotherapy or as an adjunct to lithium or divalproex Day 1: Twice daily dosing totaling 100 mg. Day 2: Twice daily dosing totaling 200 mg. Day 3: Twice daily dosing totaling 300 mg. Day 4: Twice daily dosing totaling 400 mg. Further dosage adjustments up to 800 mg/day by Day 6 should be in increments of no greater than 200 mg/day. 400 to 800 mg/day 800 mg/day
Bipolar Mania-Children and Adolescents (10 to 17 years), Monotherapy Day 1: 25 mg twice daily. Day 2: Twice daily dosing totaling 100 mg. Day 3: Twice daily dosing totaling 200 mg. Day 4: Twice daily dosing totaling 300 mg. Day 5: Twice daily dosing totaling 400 mg. Further adjustments should be in increments no greater than 100 mg/day within the recommended dose range of 400 to 600 mg/day. Based on response and tolerability, may be administered three times daily. 400 to 600 mg/day 600 mg/day
Bipolar Depression-Adults Administer once daily at bedtime. Day 1: 50 mg Day 2: 100 mg Day 3: 200 mg Day 4: 300 mg 300 mg/day 300 mg/day
Bipolar I Disorder Maintenance Therapy-Adults Administer twice daily totaling 400 to 800 mg/day as adjunct to lithium or divalproex. Generally, in the maintenance phase, patients continued on the same dose on which they were stabilized. 400 to 800 mg/day 800 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 ( 14.2)].

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 CLINICAL PHARMACOLOGY ( 12.3)]. When indicated, dose escalation should be performed with caution in these patients.

Elderly patients should be started on quetiapine 50 mg/day and the dose can be increased in increments of 50 mg/day depending on the clinical response and tolerability of the individual patient.

2.4 Dose Modifications in Hepatically Impaired Patients

Patients with hepatic impairment should be started on 25 mg/day. The dose should be increased daily in increments of 25 mg/day to 50 mg/day to an effective dose, depending on the clinical response and tolerability of the patients.

2.5 Dose Modifications when used with CYP3A4 Inhibitors

Quetiapine dose should be reduced to one sixth of original dose when co-medicated with a potent CYP3A4 inhibitor (e.g., ketoconazole, itraconazole, indinavir, ritonavir, nefazodone, etc.). When the CYP3A4 inhibitor is discontinued, the dose of quetiapine should be increased by 6 fold [see CLINICAL PHARMACOLOGY ( 12.3) and DRUG INTERACTIONS ( 7.1)].

2.6 Dose Modifications when used with CYP3A4 Inducers

Quetiapine dose should be increased up to 5-fold of the original dose when used in combination with a chronic treatment (e.g., greater than 7 to 14 days) of a potent CYP3A4 inducer (e.g., phenytoin, carbamazepine, rifampin, avasimibe, St. John’s wort etc.). The dose should be titrated based on the clinical response and tolerability of the individual patient. When the CYP3A4 inducer is discontinued, the dose of quetiapine should be reduced to the original level within 7 to 14 days [see CLINICAL PHARMACOLOGY ( 12.3) and DRUG INTERACTIONS ( 7.1)].

2.7 Re-initiation of Treatment in Patients Previously Discontinued

Although there are no data to specifically address re-initiation of treatment, it is recommended that when restarting therapy of patients who have been off quetiapine for more than one-week, the initial dosing schedule should be followed. When restarting patients who have been off quetiapine for less than one week, gradual dose escalation may not be required and the maintenance dose may be re-initiated.

2.8 Switching from Antipsychotics

There are no systematically collected data to specifically address switching patients with schizophrenia from antipsychotics to quetiapine, or concerning concomitant administration with antipsychotics. While immediate discontinuation of the previous antipsychotic treatment may be acceptable for some patients with schizophrenia, more gradual discontinuation may be most appropriate for others. In all cases, the period of overlapping antipsychotic administration should be minimized. When switching patients with schizophrenia from depot antipsychotics, if medically appropriate, initiate quetiapine therapy in place of the next scheduled injection. The need for continuing existing EPS medication should be re-evaluated periodically.

3 DOSAGE FORMS AND STRENGTHS

  • Quetiapine tablets USP, 25 mg (as quetiapine) are pink colored, round, biconvex, film-coated tablets, debossed “LU” on one side and “Y15″ on the other side.
  • Quetiapine tablets USP, 50 mg (as quetiapine) are white, round, biconvex, film-coated tablets, debossed “LU” on one side and “Y16″ on the other side.
  • Quetiapine tablets USP, 100 mg (as quetiapine) are yellow colored, round, biconvex, film-coated tablets, debossed “LU” on one side and “Y17″ on the other side.
  • Quetiapine tablets USP, 200 mg (as quetiapine) are white, round, biconvex, film-coated tablets, debossed “LU” on one side and “Y18″ on the other side.
  • Quetiapine tablets USP, 300 mg (as quetiapine) are white, capsule shape, biconvex, film-coated tablets, debossed “LU” on one side and “Y19″ on the other side.
  • Quetiapine tablets USP, 400 mg (as quetiapine) are yellow colored, capsule shape, biconvex, film-coated tablets, debossed “LU” on one side and “Y20″ on the other side.

4 CONTRAINDICATIONS

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

5 WARNINGS AND PRECAUTIONS

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 is not approved for the treatment of patients with dementia-related psychosis [see BOXED WARNING].

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