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Uses
Duloxetine Delayed-release Capsules are indicated for the treatment of major depressive disorder (MDD). The efficacy of Duloxetine Delayed-release Capsules was established in four short-term and one maintenance trial in adults [see Clinical Studies (14.1)].
A major depressive episode (DSM-IV) implies a prominent and relatively persistent (nearly every day for at least 2 weeks) depressed or dysphoric mood that usually interferes with daily functioning, and includes at least 5 of the following 9 symptoms: depressed mood, loss of interest in usual activities, significant change in weight and/or appetite, insomnia or hypersomnia, psychomotor agitation or retardation, increased fatigue, feelings of guilt or worthlessness, slowed thinking or impaired concentration, or a suicide attempt or suicidal ideation.
Duloxetine Delayed-release Capsules are indicated for the treatment of generalized anxiety disorder (GAD). The efficacy of Duloxetine Delayed-release Capsules was established in three short-term trials and one maintenance trial in adults [see Clinical Studies (14.2)].
Generalized anxiety disorder is defined by the DSM-IV as excessive anxiety and worry, present more days than not, for at least 6 months. The excessive anxiety and worry must be difficult to control and must cause significant distress or impairment in normal functioning. It must be associated with at least 3 of the following 6 symptoms: restlessness or feeling keyed up or on edge, being easily fatigued, difficulty concentrating or mind going blank, irritability, muscle tension, and/or sleep disturbance.
Duloxetine Delayed-release Capsules are indicated for the management of neuropathic pain (DPNP) associated with diabetic peripheral neuropathy [see Clinical Studies (14.3)].
Duloxetine Delayed-release Capsules are indicated for the management of chronic musculoskeletal pain. This has been established in studies in patients with chronic low back pain (CLBP) and chronic pain due to osteoarthritis [see Clinical Studies (14.5)].
History
There is currently no drug history available for this drug.
Other Information
Duloxetine Delayed-release Capsules (duloxetine hydrochloride) are a selective serotonin and norepinephrine reuptake inhibitor (SSNRI) for oral administration. Its chemical designation is (+)-(S)-N-methyl-γ-(1-naphthyloxy)-2-thiophenepropylamine hydrochloride. The empirical formula is C18H19NOS∙HCl, which corresponds to a molecular weight of 333.88. The structural formula is:
Duloxetine hydrochloride is a white to slightly brownish white solid, which is slightly soluble in water.
Each capsule contains enteric-coated pellets of 22.4, 33.7, or 67.3 mg of duloxetine hydrochloride equivalent to 20, 30, or 60 mg of duloxetine, respectively. These enteric-coated pellets are designed to prevent degradation of the drug in the acidic environment of the stomach. Inactive ingredients include ammonium hydroxide, black iron oxide, hypromellose, methacrylic acid copolymer dispersion (methacrylic acid-ethyl acrylate copolymer, polysorbate 80, sodium lauryl sulfate), potassium hydroxide, propylene glycol, shellac, sucrose, sugar spheres (maize starch, sucrose), talc, titanium dioxide, triethylcitrate, and hard gelatin capsules (gelatin, titanium dioxide). The 20 mg hard gelatin capsule colorant is yellow iron oxide. The 30 mg hard gelatin capsule colorants are FD&C Blue No. 1, FD&C Yellow No. 6, and FD&C Yellow No. 10. The 60 mg hard gelatin capsule colorants are FD&C Blue No. 1, FD&C Yellow No. 6, FD&C Yellow No.10, and yellow iron oxide.
Sources
Duloxetine Delayed-release Manufacturers
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Preferred Pharmaceuticals, Inc.
Duloxetine Delayed-release | Preferred Pharmaceuticals, Inc.
Duloxetine Delayed-release Capsules should be swallowed whole and should not be chewed or crushed, nor should the capsule be opened and its contents sprinkled on food or mixed with liquids. All of these might affect the enteric coating. Duloxetine Delayed-release Capsules can be given without regard to meals.
2.1Initial TreatmentMajor Depressive Disorder — Duloxetine Delayed-release Capsules should be administered at a total dose of 40 mg/day (given as 20 mg twice daily) to 60 mg/day (given either once daily or as 30 mg twice daily). For some patients, it may be desirable to start at 30 mg once daily for 1 week, to allow patients to adjust to the medication before increasing to 60 mg once daily. While a 120 mg/day dose was shown to be effective, there is no evidence that doses greater than 60 mg/day confer any additional benefits. The safety of doses above 120 mg/day has not been adequately evaluated [see Clinical Studies (14.1)].
Generalized Anxiety Disorder — For most patients, the recommended starting dose for Duloxetine Delayed-release Capsules is 60 mg administered once daily. For some patients, it may be desirable to start at 30 mg once daily for 1 week, to allow patients to adjust to the medication before increasing to 60 mg once daily. While a 120 mg once daily dose was shown to be effective, there is no evidence that doses greater than 60 mg/day confer additional benefit. Nevertheless, if a decision is made to increase the dose beyond 60 mg once daily, dose increases should be in increments of 30 mg once daily. The safety of doses above 120 mg once daily has not been adequately evaluated [see Clinical Studies (14.2)].
Diabetic Peripheral Neuropathic Pain — The recommended dose for Duloxetine Delayed-release Capsules is 60 mg administered once daily. There is no evidence that doses higher than 60 mg confer additional significant benefit and the higher dose is clearly less well tolerated [see Clinical Studies (14.3)]. For patients for whom tolerability is a concern, a lower starting dose may be considered.
Since diabetes is frequently complicated by renal disease, a lower starting dose and gradual increase in dose should be considered for patients with renal impairment [see Dosage and Administration (2.3), Use in Specific Populations (8.10), and Clinical Pharmacology (12.3)].
Chronic Musculoskeletal Pain — The recommended dose for Duloxetine Delayed-release Capsules is 60 mg once daily. Dosing may be started at 30 mg for one week, to allow patients to adjust to the medication before increasing to 60 mg once daily. There is no evidence that higher doses confer additional benefit, even in patients who do not respond to a 60 mg dose, and higher doses are associated with a higher rate of adverse reactions [see Clinical Studies (14.5)].
2.2Maintenance/Continuation/Extended TreatmentMajor Depressive Disorder — It is generally agreed that acute episodes of major depression require several months or longer of sustained pharmacologic therapy. Maintenance of efficacy in MDD was demonstrated with Duloxetine Delayed-release Capsules as monotherapy. Duloxetine Delayed-release Capsules should be administered at a total dose of 60 mg once daily. Patients should be periodically reassessed to determine the need for maintenance treatment and the appropriate dose for such treatment [see Clinical Studies (14.1)].
Generalized Anxiety Disorder — It is generally agreed that episodes of generalized anxiety disorder require several months or longer of sustained pharmacological therapy. Maintenance of efficacy in GAD was demonstrated with Duloxetine Delayed-release Capsules as monotherapy. Duloxetine Delayed-release Capsules should be administered in a dose range of 60-120 mg once daily. Patients should be periodically reassessed to determine the continued need for maintenance treatment and the appropriate dose for such treatment [see Clinical Studies (14.2)].
Diabetic Peripheral Neuropathic Pain — As the progression of diabetic peripheral neuropathy is highly variable and management of pain is empirical, the effectiveness of Duloxetine Delayed-release Capsules must be assessed individually. Efficacy beyond 12 weeks has not been systematically studied in placebo-controlled trials.
Chronic Musculoskeletal Pain — The efficacy of Duloxetine Delayed-release Capsules has not been established in placebo-controlled studies beyond 13 weeks.
2.3Dosing in Special PopulationsHepatic Insufficiency — It is recommended that Duloxetine Delayed-release Capsules should ordinarily not be administered to patients with any hepatic insufficiency [see Warnings and Precautions (5.13) and Use in Specific Populations (8.9)].
Severe Renal Impairment — Duloxetine Delayed-release Capsules are not recommended for patients with end-stage renal disease or severe renal impairment (estimated creatinine clearance <30 mL/min) [see Warnings and Precautions (5.13) and Use in Specific Populations (8.10)].
Elderly Patients — No dose adjustment is recommended for elderly patients on the basis of age. As with any drug, caution should be exercised in treating the elderly. When individualizing the dosage in elderly patients, extra care should be taken when increasing the dose [see Use in Specific Populations (8.5)].
Pregnant Women — There are no adequate and well-controlled studies in pregnant women; therefore, Duloxetine Delayed-release Capsules should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus [see Use in Specific Populations (8.1)].
Nursing Mothers — Because the safety of duloxetine in infants is not known, nursing while on Duloxetine Delayed-release Capsules is not recommended [see Use in Specific Populations (8.3)].
2.4Discontinuing Duloxetine Delayed-release CapsulesSymptoms associated with discontinuation of Duloxetine Delayed-release Capsules and other SSRIs and SNRIs have been reported. A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible [see Warnings and Precautions (5.7)].
2.5Switching a Patient To or From a Monoamine Oxidase Inhibitor (MAOI) Intended to Treat Psychiatric DisordersAt least 14 days should elapse between discontinuation of an MAOI intended to treat psychiatric disorders and initiation of therapy with Duloxetine Delayed-release Capsules. Conversely, at least 5 days should be allowed after stopping Duloxetine Delayed-release Capsules before starting an MAOI intended to treat psychiatric disorders [see Contraindications (4.1)].
2.6Use of Duloxetine Delayed-release Capsules with Other MAOIs such as Linezolid or Methylene BlueDo not start Duloxetine Delayed-release Capsules in a patient who is being treated with linezolid or intravenous methylene blue because there is an increased risk of serotonin syndrome. In a patient who requires more urgent treatment of a psychiatric condition, other interventions, including hospitalization, should be considered [see Contraindications (4.1)]
In some cases, a patient already receiving Duloxetine Delayed-release Capsules therapy may require urgent treatment with linezolid or intravenous methylene blue. If acceptable alternatives to linezolid or intravenous methylene blue treatment are not available and the potential benefits of linezolid or intravenous methylene blue treatment are judged to outweigh the risks of serotonin syndrome in a particular patient, Duloxetine Delayed-release Capsules should be stopped promptly, and linezolid or intravenous methylene blue can be administered. The patient should be monitored for symptoms of serotonin syndrome for 5 days or until 24 hours after the last dose of linezolid or intravenous methylene blue, whichever comes first. Therapy with Duloxetine Delayed-release Capsules may be resumed 24 hours after the last dose of linezolid or intravenous methylene blue [see Warnings and Precautions (5.4)].
The risk of administering methylene blue by non-intravenous routes (such as oral tablets or by local injection) or in intravenous doses much lower than 1 mg/kg with Duloxetine Delayed-release Capsules is unclear. The clinician should, nevertheless, be aware of the possibility of emergent symptoms of serotonin syndrome with such use [see Warnings and Precautions (5.4)].
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Golden State Medical Supply, Inc.
Duloxetine Delayed-release | Amerigen Pharmaceuticals Inc.
2.1 HypertensionThe dose of nebivolol must be individualized to the needs of the patient. For most patients, the recommended starting dose is 5 mg once daily, with or without food, as monotherapy or in combination with other agents. For patients requiring further reduction in blood pressure, the dose can be increased at 2-week intervals up to 40 mg. A more frequent dosing regimen is unlikely to be beneficial.
Renal Impairment
In patients with severe renal impairment (ClCr less than 30 mL/min) the recommended initial dose is 2.5 mg once daily; titrate up slowly if needed. Nebivolol has not been studied in patients receiving dialysis [see Clinical Pharmacology (12.4) ].
Hepatic Impairment
In patients with moderate hepatic impairment, the recommended initial dose is 2.5 mg once daily; titrate up slowly if needed. Nebivolol has not been studied in patients with severe hepatic impairment and therefore it is not recommended in that population [see Clinical Pharmacology (12.4) ].
2.2 Subpopulations
Geriatric Patients
It is not necessary to adjust the dose in the elderly [see use in Specific Populations (8.5) ].
CYP2D6 Polymorphism
No dose adjustments are necessary for patients who are CYP2D6 poor metabolizers. The clinical effect and safety profile observed in poor metabolizers were similar to those of extensive metabolizers [see Clinical Pharmacology (12.3) ].
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Breckenridge Pharmaceutical, Inc.
Duloxetine Delayed-release | Breckenridge Pharmaceutical, Inc.
Duloxetine Delayed-release Capsules should be swallowed whole and should not be chewed or crushed, nor should the capsule be opened and its contents sprinkled on food or mixed with liquids. All of these might affect the enteric coating. Duloxetine Delayed-release Capsules can be given without regard to meals.
2.1 Initial TreatmentMajor Depressive Disorder — Duloxetine Delayed-release Capsules should be administered at a total dose of 40 mg/day (given as 20 mg twice daily) to 60 mg/day (given either once daily or as 30 mg twice daily). For some patients, it may be desirable to start at 30 mg once daily for 1 week, to allow patients to adjust to the medication before increasing to 60 mg once daily. While a 120 mg/day dose was shown to be effective, there is no evidence that doses greater than 60 mg/day confer any additional benefits. The safety of doses above 120 mg/day has not been adequately evaluated [see Clinical Studies (14.1)].
Generalized Anxiety Disorder — For most patients, the recommended starting dose for Duloxetine Delayed-release Capsules is 60 mg administered once daily. For some patients, it may be desirable to start at 30 mg once daily for 1 week, to allow patients to adjust to the medication before increasing to 60 mg once daily. While a 120 mg once daily dose was shown to be effective, there is no evidence that doses greater than 60 mg/day confer additional benefit. Nevertheless, if a decision is made to increase the dose beyond 60 mg once daily, dose increases should be in increments of 30 mg once daily. The safety of doses above 120 mg once daily has not been adequately evaluated [see Clinical Studies (14.2)].
Diabetic Peripheral Neuropathic Pain — The recommended dose for Duloxetine Delayed-release Capsules is 60 mg administered once daily. There is no evidence that doses higher than 60 mg confer additional significant benefit and the higher dose is clearly less well tolerated [see Clinical Studies (14.3)]. For patients for whom tolerability is a concern, a lower starting dose may be considered.
Since diabetes is frequently complicated by renal disease, a lower starting dose and gradual increase in dose should be considered for patients with renal impairment [see Dosage and Administration (2.3), Use in Specific Populations (8.10), and Clinical Pharmacology (12.3)].
Chronic Musculoskeletal Pain — The recommended dose for Duloxetine Delayed-release Capsules is 60 mg once daily. Dosing may be started at 30 mg for one week, to allow patients to adjust to the medication before increasing to 60 mg once daily. There is no evidence that higher doses confer additional benefit, even in patients who do not respond to a 60 mg dose, and higher doses are associated with a higher rate of adverse reactions [see Clinical Studies (14.5)].
2.2 Maintenance/Continuation/Extended TreatmentMajor Depressive Disorder — It is generally agreed that acute episodes of major depression require several months or longer of sustained pharmacologic therapy. Maintenance of efficacy in MDD was demonstrated with Duloxetine Delayed-release Capsules as monotherapy. Duloxetine Delayed-release Capsules should be administered at a total dose of 60 mg once daily. Patients should be periodically reassessed to determine the need for maintenance treatment and the appropriate dose for such treatment [see Clinical Studies (14.1)].
Generalized Anxiety Disorder — It is generally agreed that episodes of generalized anxiety disorder require several months or longer of sustained pharmacological therapy. Maintenance of efficacy in GAD was demonstrated with Duloxetine Delayed-release Capsules as monotherapy. Duloxetine Delayed-release Capsules should be administered in a dose range of 60-120 mg once daily. Patients should be periodically reassessed to determine the continued need for maintenance treatment and the appropriate dose for such treatment [see Clinical Studies (14.2)].
Diabetic Peripheral Neuropathic Pain — As the progression of diabetic peripheral neuropathy is highly variable and management of pain is empirical, the effectiveness of Duloxetine Delayed-release Capsules must be assessed individually. Efficacy beyond 12 weeks has not been systematically studied in placebo-controlled trials.
Chronic Musculoskeletal Pain — The efficacy of Duloxetine Delayed-release Capsules has not been established in placebo-controlled studies beyond 13 weeks.
2.3 Dosing in Special PopulationsHepatic Insufficiency — It is recommended that Duloxetine Delayed-release Capsules should ordinarily not be administered to patients with any hepatic insufficiency [see Warnings and Precautions (5.13) and Use in Specific Populations (8.9)].
Severe Renal Impairment — Duloxetine Delayed-release Capsules are not recommended for patients with end-stage renal disease or severe renal impairment (estimated creatinine clearance <30 mL/min) [see Warnings and Precautions (5.13) and Use in Specific Populations (8.10)].
Elderly Patients — No dose adjustment is recommended for elderly patients on the basis of age. As with any drug, caution should be exercised in treating the elderly. When individualizing the dosage in elderly patients, extra care should be taken when increasing the dose [see Use in Specific Populations (8.5)].
Pregnant Women — There are no adequate and well-controlled studies in pregnant women; therefore, Duloxetine Delayed-release Capsules should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus [see Use in Specific Populations (8.1)].
Nursing Mothers — Because the safety of duloxetine in infants is not known, nursing while on Duloxetine Delayed-release Capsules is not recommended [see Use in Specific Populations (8.3)].
2.4 Discontinuing Duloxetine Delayed-release CapsulesSymptoms associated with discontinuation of Duloxetine Delayed-release Capsules and other SSRIs and SNRIs have been reported. A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible [see Warnings and Precautions (5.7)].
2.5 Switching a Patient To or From a Monoamine Oxidase Inhibitor (MAOI) Intended to Treat Psychiatric DisordersAt least 14 days should elapse between discontinuation of an MAOI intended to treat psychiatric disorders and initiation of therapy with Duloxetine Delayed-release Capsules. Conversely, at least 5 days should be allowed after stopping Duloxetine Delayed-release Capsules before starting an MAOI intended to treat psychiatric disorders [see Contraindications (4.1)].
2.6 Use of Duloxetine Delayed-release Capsules with Other MAOIs such as Linezolid or Methylene BlueDo not start Duloxetine Delayed-release Capsules in a patient who is being treated with linezolid or intravenous methylene blue because there is an increased risk of serotonin syndrome. In a patient who requires more urgent treatment of a psychiatric condition, other interventions, including hospitalization, should be considered [see Contraindications (4.1)]
In some cases, a patient already receiving Duloxetine Delayed-release Capsules therapy may require urgent treatment with linezolid or intravenous methylene blue. If acceptable alternatives to linezolid or intravenous methylene blue treatment are not available and the potential benefits of linezolid or intravenous methylene blue treatment are judged to outweigh the risks of serotonin syndrome in a particular patient, Duloxetine Delayed-release Capsules should be stopped promptly, and linezolid or intravenous methylene blue can be administered. The patient should be monitored for symptoms of serotonin syndrome for 5 days or until 24 hours after the last dose of linezolid or intravenous methylene blue, whichever comes first. Therapy with Duloxetine Delayed-release Capsules may be resumed 24 hours after the last dose of linezolid or intravenous methylene blue [see Warnings and Precautions (5.4)].
The risk of administering methylene blue by non-intravenous routes (such as oral tablets or by local injection) or in intravenous doses much lower than 1 mg/kg with Duloxetine Delayed-release Capsules is unclear. The clinician should, nevertheless, be aware of the possibility of emergent symptoms of serotonin syndrome with such use [see Warnings and Precautions (5.4)].
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Tya Pharmaceuticals
Duloxetine Delayed-release | Tya Pharmaceuticals
Duloxetine Delayed-release Capsules should be swallowed whole and should not be chewed or crushed, nor should the capsule be opened and its contents sprinkled on food or mixed with liquids. All of these might affect the enteric coating. Duloxetine Delayed-release Capsules can be given without regard to meals.
2.1 Initial Treatment— Duloxetine Delayed-release Capsules should be administered at a total dose of 40 mg/day (given as 20 mg twice daily) to 60 mg/day (given either once daily or as 30 mg twice daily). For some patients, it may be desirable to start at 30 mg once daily for 1 week, to allow patients to adjust to the medication before increasing to 60 mg once daily. While a 120 mg/day dose was shown to be effective, there is no evidence that doses greater than 60 mg/day confer any additional benefits. The safety of doses above 120 mg/day has not been adequately evaluated . Major Depressive Disorder[see ] Clinical Studies (14.1)
— For most patients, the recommended starting dose for Duloxetine Delayed-release Capsules is 60 mg administered once daily. For some patients, it may be desirable to start at 30 mg once daily for 1 week, to allow patients to adjust to the medication before increasing to 60 mg once daily. While a 120 mg once daily dose was shown to be effective, there is no evidence that doses greater than 60 mg/day confer additional benefit. Nevertheless, if a decision is made to increase the dose beyond 60 mg once daily, dose increases should be in increments of 30 mg once daily. The safety of doses above 120 mg once daily has not been adequately evaluated . Generalized Anxiety Disorder[see ] Clinical Studies (14.2)
— The recommended dose for Duloxetine Delayed-release Capsules is 60 mg administered once daily. There is no evidence that doses higher than 60 mg confer additional significant benefit and the higher dose is clearly less well tolerated . For patients for whom tolerability is a concern, a lower starting dose may be considered. Diabetic Peripheral Neuropathic Pain[see ] Clinical Studies (14.3)
Since diabetes is frequently complicated by renal disease, a lower starting dose and gradual increase in dose should be considered for patients with renal impairment [see , , and ]. Dosage and Administration (2.3)Use in Specific Populations (8.10)Clinical Pharmacology (12.3)
— The recommended dose for Duloxetine Delayed-release Capsules is 60 mg once daily. Dosing may be started at 30 mg for one week, to allow patients to adjust to the medication before increasing to 60 mg once daily. There is no evidence that higher doses confer additional benefit, even in patients who do not respond to a 60 mg dose, and higher doses are associated with a higher rate of adverse reactions . Chronic Musculoskeletal Pain[see ] Clinical Studies (14.5)
2.2 Maintenance/Continuation/Extended Treatment— It is generally agreed that acute episodes of major depression require several months or longer of sustained pharmacologic therapy. Maintenance of efficacy in MDD was demonstrated with Duloxetine Delayed-release Capsules as monotherapy. Duloxetine Delayed-release Capsules should be administered at a total dose of 60 mg once daily. Patients should be periodically reassessed to determine the need for maintenance treatment and the appropriate dose for such treatment . Major Depressive Disorder[see ] Clinical Studies (14.1)
— It is generally agreed that episodes of generalized anxiety disorder require several months or longer of sustained pharmacological therapy. Maintenance of efficacy in GAD was demonstrated with Duloxetine Delayed-release Capsules as monotherapy. Duloxetine Delayed-release Capsules should be administered in a dose range of 60-120 mg once daily. Patients should be periodically reassessed to determine the continued need for maintenance treatment and the appropriate dose for such treatment . Generalized Anxiety Disorder[see ] Clinical Studies (14.2)
— As the progression of diabetic peripheral neuropathy is highly variable and management of pain is empirical, the effectiveness of Duloxetine Delayed-release Capsules must be assessed individually. Efficacy beyond 12 weeks has not been systematically studied in placebo-controlled trials. Diabetic Peripheral Neuropathic Pain
— The efficacy of Duloxetine Delayed-release Capsules has not been established in placebo-controlled studies beyond 13 weeks. Chronic Musculoskeletal Pain
2.3 Dosing in Special Populations— It is recommended that Duloxetine Delayed-release Capsules should ordinarily not be administered to patients with any hepatic insufficiency . Hepatic Insufficiency[see and ] Warnings and Precautions (5.13)Use in Specific Populations (8.9)
— Duloxetine Delayed-release Capsules are not recommended for patients with end-stage renal disease or severe renal impairment (estimated creatinine clearance <30 mL/min) . Severe Renal Impairment[see and ] Warnings and Precautions (5.13)Use in Specific Populations (8.10)
— No dose adjustment is recommended for elderly patients on the basis of age. As with any drug, caution should be exercised in treating the elderly. When individualizing the dosage in elderly patients, extra care should be taken when increasing the dose . Elderly Patients[see ] Use in Specific Populations (8.5)
— There are no adequate and well-controlled studies in pregnant women; therefore, Duloxetine Delayed-release Capsules should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus . Pregnant Women[see ] Use in Specific Populations (8.1)
— Because the safety of duloxetine in infants is not known, nursing while on Duloxetine Delayed-release Capsules is not recommended . Nursing Mothers[see ] Use in Specific Populations (8.3)
2.4 Discontinuing Duloxetine Delayed-release CapsulesSymptoms associated with discontinuation of Duloxetine Delayed-release Capsules and other SSRIs and SNRIs have been reported. A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible . [see ] Warnings and Precautions (5.7)
2.5 Switching a Patient To or From a Monoamine Oxidase Inhibitor (MAOI) Intended to Treat Psychiatric DisordersAt least 14 days should elapse between discontinuation of an MAOI intended to treat psychiatric disorders and initiation of therapy with Duloxetine Delayed-release Capsules. Conversely, at least 5 days should be allowed after stopping Duloxetine Delayed-release Capsules before starting an MAOI intended to treat psychiatric disorders [see ]. Contraindications (4.1)
2.6 Use of Duloxetine Delayed-release Capsules with Other MAOIs such as Linezolid or Methylene BlueDo not start Duloxetine Delayed-release Capsules in a patient who is being treated with linezolid or intravenous methylene blue because there is an increased risk of serotonin syndrome. In a patient who requires more urgent treatment of a psychiatric condition, other interventions, including hospitalization, should be considered [see ] Contraindications (4.1)
In some cases, a patient already receiving Duloxetine Delayed-release Capsules therapy may require urgent treatment with linezolid or intravenous methylene blue. If acceptable alternatives to linezolid or intravenous methylene blue treatment are not available and the potential benefits of linezolid or intravenous methylene blue treatment are judged to outweigh the risks of serotonin syndrome in a particular patient, Duloxetine Delayed-release Capsules should be stopped promptly, and linezolid or intravenous methylene blue can be administered. The patient should be monitored for symptoms of serotonin syndrome for 5 days or until 24 hours after the last dose of linezolid or intravenous methylene blue, whichever comes first. Therapy with Duloxetine Delayed-release Capsules may be resumed 24 hours after the last dose of linezolid or intravenous methylene blue [see ]. Warnings and Precautions (5.4)
The risk of administering methylene blue by non-intravenous routes (such as oral tablets or by local injection) or in intravenous doses much lower than 1 mg/kg with Duloxetine Delayed-release Capsules is unclear. The clinician should, nevertheless, be aware of the possibility of emergent symptoms of serotonin syndrome with such use . [see ] Warnings and Precautions (5.4)
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