Iloperidone
Generic Name: iloperidone
Brand Names:
Fanapt
11 DESCRIPTION FANAPT is an atypical antipsychotic belonging to the chemical class of piperidinyl-benzisoxazole derivatives. Its chemical name is 4’-[3-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidino]propoxy]-3’-methoxyacetophenone. Its molecular formula is C 24 H 27 FN 2 O 4 and its molecular weight is 426.48. The structural formula is: Iloperidone is a white to off-white finely crystalline powder.
Overview
11 DESCRIPTION FANAPT is an atypical antipsychotic belonging to the chemical class of piperidinyl-benzisoxazole derivatives. Its chemical name is 4’-[3-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidino]propoxy]-3’-methoxyacetophenone. Its molecular formula is C 24 H 27 FN 2 O 4 and its molecular weight is 426.48. The structural formula is: Iloperidone is a white to off-white finely crystalline powder.
Uses
1 INDICATIONS AND USAGE FANAPT ® is indicated for: Treatment of schizophrenia in adults [see Clinical Studies (14.1) ]. Acute treatment of manic or mixed episodes associated with bipolar I disorder in adults [see Clinical Studies (14.2) ] . FANAPT is an atypical antipsychotic indicated for: Treatment of schizophrenia in adults. ( 1 , 14.1 ) Acute treatment of manic or mixed episodes associated with bipolar I disorder in adults. ( 1 , 14.2 )
Dosage
2 DOSAGE AND ADMINISTRATION Administer FANAPT orally twice daily without regard to meals. ( 2.1 ) Titrate the dosage of FANAPT to avoid orthostatic hypotension. See Full Prescribing Information for titration schedule. ( 2.1 ) Recommended Dosage: Indication Starting Dosage Recommended Dosage Schizophrenia ( 2.1 ) 1 mg twice daily 6 mg to 12 mg twice daily Bipolar Mania ( 2.1 ) 1 mg twice daily 12 mg twice daily CYP2D6 Poor Metabolizers: See Full Prescribing Information for titration schedule and recommended dosage. ( 2.2 ) 2.1 Recommended Dosage Titrate FANAPT to avoid orthostatic hypotension [see Warnings and Precautions (5.7) ] . Administer FANAPT orally with or without food.
Side Effects
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) ] Cerebrovascular Adverse Reactions, Including Stroke, in Elderly Patients with Dementia-Related Psychosis [see Warnings and Precautions (5.2) ] QT Prolongation [see Warnings and Precautions (5.3) ] Neuroleptic Malignant Syndrome (NMS) [see Warnings and Precautions (5.4) ] Tardive Dyskinesia [see Warnings and Precautions (5.5) ] Metabolic Changes [see Warnings and Precautions (5.6) ] Orthostatic Hypotension and Syncope [see Warnings and Precautions (5.7) ] Falls [see Warnings and Precautions (5.8) ] Seizures [see Warnings and Precautions (5.9) ] Leukopenia, Neutropenia...
Interactions
7 DRUG INTERACTIONS The dose of FANAPT should be reduced in patients co-administered a strong CYP2D6 or CYP3A4 inhibitor. ( 2.2 , 7.1 ) 7.1 Clinically Important Drug Interactions with FANAPT Table 7 presents clinically important drug interactions with FANAPT. Table 7: Clinically Important Drug Interactions with FANAPT Strong CYP2D6 Inhibitors Clinical Impact Coadministration of fluoxetine with iloperidone increased exposure (area under curve, [AUC]) of iloperidone and its metabolite P88, by about 2- to 3- fold, and decreased the AUC of its metabolite P95 by one-half [see Clinical Pharmacology (12.3 , 12.5) ] .
Warnings
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. FANAPT is not approved for the treatment of patients with dementia-related psychosis [see Warnings and Precautions (5.1) ] . WARNING: INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS See full prescribing information for complete boxed warning. 5 WARNINGS AND PRECAUTIONS Cerebrovascular Adverse Reactions in Elderly Patients with Dementia- Related Psychosis: Increased incidence of cerebrovascular adverse reactions (e.g., stroke, transient ischemic attack). ( 5.2 ) QT prolongation: Prolongs QT interval and may be associated with arrhythmia and sudden death. Avoid use of FANAPT in combination with other drugs that are known to prolong QTc; use caution and consider dose modification when prescribing FANAPT with other drugs that inhibit FANAPT metabolism. Monitor serum potassium and magnesium in patients at risk for electrolyte disturbances. ( 1 , 5.3 , 7.1 , 7.2 , 12.3 ) Neuroleptic Malignant Syndrome (NMS): Manage with immediate discontinuation of drug and close monitoring. 4 CONTRAINDICATIONS FANAPT is contraindicated in individuals with a known hypersensitivity reaction to the product. Anaphylaxis, angioedema, and other hypersensitivity reactions have been reported [see Adverse Reactions (6.2) ] . Known hypersensitivity to FANAPT or to any components in the formulation. ( 4 , 6.2 )
Pregnancy
8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to FANAPT during pregnancy. For more information contact the National Pregnancy Registry for Atypical Antipsychotics at 1-866-961-2388 or visit http://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/ . Risk Summary Neonates whose mothers are exposed to antipsychotic drugs, including FANAPT, during the third trimester of pregnancy are at risk for extrapyramidal and/or withdrawal symptoms following delivery [see Clinical Considerations ] .
Storage
16 HOW SUPPLIED/STORAGE AND HANDLING FANAPT tablets are white, round and identified with a logo “ ” debossed on one side and tablet strength “1”, “2”, “4”, “6”, “8”, “10”, or “12” debossed on the other side.
Frequently Asked Questions
What is Iloperidone used for?▼
1 INDICATIONS AND USAGE FANAPT ® is indicated for: Treatment of schizophrenia in adults [see Clinical Studies (14.1) ]. Acute treatment of manic or mixed episodes associated with bipolar I disorder in adults [see Clinical Studies (14.2) ] . FANAPT is an atypical antipsychotic indicated for: Treatment of schizophrenia in adults. ( 1 , 14.1 ) Acute treatment of manic or mixed episodes associated with bipolar I disorder in adults. ( 1 , 14.2 )
What are the side effects of Iloperidone?▼
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) ] Cerebrovascular Adverse Reactions, Including Stroke, in Elderly Patients with Dementia-Related Psychosis [see Warnings and Precautions (5.2) ] QT Prolongation [see Warnings and Precautions (5.3) ] Neuroleptic Malignant Syndrome (NMS) [see Warnings and Precautions (5.4) ] Tardive Dyskinesia [see Warnings and Precautions (5.5) ] Metabolic Changes [see Warnings and Precautions (5.6) ] Orthostatic Hypotension and Syncope [see Warnings and Precautions (5.7) ] Falls [see Warnings and Precautions (5.8) ] Seizures [see Warnings and Precautions (5.9) ] Leukopenia, Neutropenia...
Can I take Iloperidone during pregnancy?▼
8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to FANAPT during pregnancy. For more information contact the National Pregnancy Registry for Atypical Antipsychotics at 1-866-961-2388 or visit http://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/ . Risk Summary Neonates whose mothers are exposed to antipsychotic drugs, including FANAPT, during the third trimester of pregnancy are at risk for extrapyramidal and/or withdrawal symptoms following delivery [see Clinical Considerations ] .
What are the important warnings for Iloperidone?▼
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. FANAPT is not approved for the treatment of patients with dementia-related psychosis [see Warnings and Precautions (5.1) ] . WARNING: INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS See full prescribing information for complete boxed warning. 5 WARNINGS AND PRECAUTIONS Cerebrovascular Adverse Reactions in Elderly Patients with Dementia- Related Psychosis: Increased incidence of cerebrovascular adverse reactions (e.g., stroke, transient ischemic attack). ( 5.2 ) QT prolongation: Prolongs QT interval and may be associated with arrhythmia and sudden death. Avoid use of FANAPT in combination with other drugs that are known to prolong QTc; use caution and consider dose modification when prescribing FANAPT with other drugs that inhibit FANAPT metabolism. Monitor serum potassium and magnesium in patients at risk for electrolyte disturbances. ( 1 , 5.3 , 7.1 , 7.2 , 12.3 ) Neuroleptic Malignant Syndrome (NMS): Manage with immediate discontinuation of drug and close monitoring. 4 CONTRAINDICATIONS FANAPT is contraindicated in individuals with a known hypersensitivity reaction to the product. Anaphylaxis, angioedema, and other hypersensitivity reactions have been reported [see Adverse Reactions (6.2) ] . Known hypersensitivity to FANAPT or to any components in the formulation. ( 4 , 6.2 )
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.