Savella

— THERAPEUTIC CATEGORIES —
  • Fibromyalgia

Savella Generic Name & Formulations

General Description

Milnacipran (as HCl) 12.5mg, 25mg, 50mg, 100mg; tabs.

Pharmacological Class

SNRI.

How Supplied

Tabs—60; Titration Pack (4 week supply)—1

How Supplied

Savella 12.5 mg Tablets:

  • Blue, round, film-coated tablets, debossed with “F” on one side and “L” on the reverse side. Available in bottles of 60.

Savella 25 mg Tablets:

  • White, round, film-coated tablets, debossed with “FL” on one side and “25” on the reverse side. Available in bottles of 60.

Savella 50 mg Tablets:

  • White, oval-shaped, film-coated tablets, debossed with “FL” on one side and “50” on the reverse side. Available in bottles of 60.

Savella 100 mg Tablets:

  • Pink, oval-shaped, film-coated tablets, debossed with “FL” on one side and “100” on the reverse side. Available in bottles of 60.

Savella Titration Pack:

  • Blister package containing 55 tablets: 5 x 12.5-mg tablets, 8 x 25-mg tablets, and 42 x 50 mg tablets. Available as a 4-Week Titration Pack.

Storage

Store at 25°C (77°F); excursions permitted between 15°C and 30°C (between 59°F and 86°F) [See USP Controlled Room Temperature].

Manufacturer

Generic Availability

NO

Mechanism of Action

The exact mechanism of the central pain inhibitory action of milnacipran and its ability to improve the symptoms of fibromyalgia in humans are unknown. Preclinical studies have shown that milnacipran is a potent inhibitor of neuronal norepinephrine and serotonin reuptake; milnacipran inhibits norepinephrine uptake with approximately 3-fold higher potency in vitro than serotonin without directly affecting the uptake of dopamine or other neurotransmitters.

Savella Indications

Indications

Fibromyalgia.

Savella Dosage and Administration

Adult

May take with food. Titrate dose. Day 1: 12.5mg once. Days 2–3: 12.5mg twice daily. Days 4–7: 25mg twice daily. After Day 7: 50mg twice daily (recommended dose); max 100mg twice daily. Severe renal impairment (CrCl 5–29mL/min): maintenance 25mg twice daily; max 50mg twice daily. Withdraw gradually.

Adult

Recommended Dosing

  • Taking with food may improve tolerability. Titrate dose. 

  • Day 1: 12.5mg once. Days 2–3: 12.5mg twice daily. Days 4–7: 25mg twice daily. After Day 7: 50mg twice daily (recommended dose); max 100mg twice daily. Taper Savella and avoid abrupt cessation after extended use.

Children

<18yrs: not recommended.

Renal impairment

Moderate renal impairment: use caution.

Severe renal impairment (CrCl 5–29mL/min): reduce maintenance dose by 50% to 25mg twice daily. Based on individual patient response, may increase dose to max 50mg twice daily.

End-stage renal disease: not recommended. 

Hepatic Impairment

Severe hepatic impairment: use caution.

Other Modifications

Discontinuing Savella  

  • Monitor patients for withdrawal symptoms when discontinuing treatment. Taper Savella and do not abruptly discontinue treatment after extended use.

Switching a Patient to or from a MAOI Intended to Treat Psychiatric Disorders

  • Should elapse at least 5 days after discontinuing Savella before starting a MAOI intended to treat psychiatric disorders.

  • Should elapse at least 14 days after discontinuing MAOI intended to treat psychiatric disorders and before starting Savella.

Use of Savella with other MAOIs such as Linezolid or Methylene Blue

  • Avoid initiating Savella in patients who are receiving linezolid or IV methylene blue due to the risk for serotonin syndrome.

  • If a patient who is currently receiving Savella requires urgent treatment with linezolid or IV methylene blue and there are no acceptable alternatives and the potential benefits outweigh the risks, then discontinue Savella promptly and administer linezolid or IV methylene blue.

    • Monitor for serotonin syndrome for 5 days or until 24 hours after the last dose of linezolid or IV methylene blue (whichever comes first). Resume Savella treatment 24 hours after the last dose of linezolid or IV methylene blue.

Savella Contraindications

Contraindications

Concomitant MAOIs during or within 5 days of discontinuing milnacipran. During or within 14 days of discontinuing an MAOI. Concomitant linezolid or IV methylene blue. Uncontrolled narrow-angle glaucoma.

Savella Boxed Warnings

Boxed Warning

Suicidality and antidepressant drugs.

Boxed Warning

Suicidality and antidepressant drugs

  • Increased risk of suicidal ideation, thinking, and behavior in pediatric and young adult patients in short-term studies.

  • Monitor closely for clinical worsening, and emergence of suicidal thoughts and behaviors.

  • Not approved for use in the treatment of major depressive disorder. Not approved for use in pediatric patients.

Savella Warnings/Precautions

Warnings/Precautions

Increased risk of suicidal thinking and behavior in children, adolescents, and young adults; monitor closely for clinical worsening or unusual changes in all patients. Monitor for serotonin syndrome; discontinue if occurs. Substantial alcohol abuse, chronic liver disease, end stage renal disease: not recommended. Hypertension. Heart disease. Arrhythmias. Monitor BP and HR prior to starting therapy and periodically thereafter; reduce dose or discontinue if elevation is sustained. Seizure disorder. Mania. Severe hepatic dysfunction. Discontinue if jaundice or liver dysfunction occurs. Moderate renal impairment. Volume depleted. Hyponatremia (esp. in elderly). History of dysuria. GU obstruction. Sexual dysfunction. Risk of bleeding. Controlled narrow-angle glaucoma. Reevaluate periodically. Write ℞ for smallest practical amount. Avoid abrupt cessation. Labor & delivery. Pregnancy (during 3rd trimester; see full labeling for effects on neonates). Nursing mothers.

Warnings/Precautions

Suicide Risk

  • Pooled analyses of short-term placebo-controlled trials of antidepressant drugs (SSRIs and others) showed that these drugs increase the risk of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults (ages 18­-24) with major depressive disorder (MDD) and other psychiatric disorders.

  • No suicides occurred in any of the pediatric studies.

  • The risk of suicidal thoughts and behaviors is unknown with long-term use.

  • Monitor all patients for clinical worsening, suicidality, and unusual changes in behavior, especially during the initial few months and at times of dosage changes.

  • In patients whose depression persistently worsens, consider changing the therapeutic regimen by tapering gradually if possible.

  • Families/caregivers: Monitor patients for emergence of agitation, irritability, unusual changes in behavior and report to health care provider.

  • Prescriptions for Savella should be written for the smallest quantity of capsules consistent with good patient management in order to reduce overdose risk.

Serotonin Syndrome

  • See Interactions.

  • Serotonin syndrome: Mental status changes (eg, agitation, hallucinations, delirium, coma), autonomic instability (eg, tachycardia, labile BP, dizziness, diaphoresis, flushing, hyperthermia),  neuromuscular symptoms (eg, tremor, rigidity, myoclonus, hyperreflexia, incoordination), and GI symptoms (eg, nausea, vomiting, diarrhea).

  • Has been reported with SSRIs and SNRIs, including Savella, and with concomitant use of serotonergic drugs (eg, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, amphetamines, St. John’s Wort) and with drugs that impair serotonin metabolism (eg, MOAIs, linezolid, IV methylene blue).

  • Monitor patients for the emergence of serotonin syndrome.

  • Concomitant use of MAOIs and Savella is contraindicated; discontinue Savella before initiating treatment with an MAOI.

  • Patients should be made aware of the potential for serotonin syndrome if concomitant use of Savella and other serotonergic drugs is clinically warranted.

Elevated Blood Pressure

  • Monitor blood pressure prior to initiation and regularly during treatment. Treat pre-existing hypertension and other cardiovascular disease prior to starting therapy with Savella.

  • Consider reducing dose or discontinuing treatment if sustained increase in blood pressure occurs.

Elevated Heart Rate

  • Monitor HR prior to initiation and periodically during treatment. Treat pre-existing tachyarrhythmias and other cardiac disease prior to starting therapy with Savella.

  • Consider reducing dose or discontinuing treatment if sustained increase in heart rate occurs.

Seizures

  • Use caution in patients with a seizure disorder.

Hepatotoxicity

  • There have been cases of increased liver enzymes and reports of severe liver injury, including fulminant hepatitis with milnacipran from foreign postmarketing experience.

  • Discontinue Savella if jaundice or other evidence of liver dysfunction occurs. Do not resume treatment with Savella unless another cause can be established.

  • In general, do not prescribe Savella to patients with substantial alcohol use or evidence of chronic liver disease.

Discontinuation of Treatment with Savella

  • Withdrawal symptoms have been observed in clinical trials after Savella was discontinued.

  • Monitor for withdrawal symptoms when discontinuing treatment with Savella.

  • A gradual dosage reduction is recommended. Do not abruptly discontinue Savella. Consider resuming previously prescribed dose of Savella if intolerable symptoms occur following a decrease in the dose or upon discontinuation of treatment.

Hyponatremia

  • Greater risk of developing hyponatremia with SNRIs, SSRIs, or Savella in elderly patients, patients taking diuretics, or those who are otherwise volume-depleted.

  • Consider discontinuing treatment with Savella in patients with symptomatic hyponatremia.

Increased Risk of Bleeding  

  • See Interactions.

  • Concomitant use with aspirin, NSAIDs, warfarin, other anticoagulants or other drugs known to affect platelet function may increase the risk of bleeding.

  • Advise patients about the increased risk of bleeding when Savella is coadministered with NSAIDs, aspirin, or other drugs. 

Activation of Mania 

  • Treatment with Savella may precipitate a mixed/manic episode. 

  • Use caution in patients with a history of mania.

Patients with a History of Dysuria

  • Use caution in patients with a history of dysuria, notably in male patients with prostatic hypertrophy, prostatitis, and other lower urinary tract obstructive disorders.

Sexual Dysfunction

  • SNRIs, including Savella, may cause symptoms of sexual dysfunction.

  • Prescribers should inquire about sexual function prior to initiation and about changes in sexual function during treatment.

Angle-Closure Glaucoma 

  • Savella may trigger an angle closure attack in a patient with anatomically narrow angles who does not have a patent iridectomy.

Concomitant Use with Alcohol

  • Do not prescribe Savella to patients with substantial alcohol use or evidence of chronic liver disease because it may aggravate pre-existing liver disease.

Pregnancy Considerations

Pregnancy Exposure Registry 

  • There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to antidepressants during pregnancy. Healthcare providers are encouraged to register patients by calling the registry at 1-877-643-3010 or by email at [email protected]

Risk Summary 

  • Insufficient available data on Savella in pregnant women to evaluate for a drug-associated risk of major birth defects. 

Clinical Considerations

  • Maternal adverse reactions: Use of SNRIs in late pregnancy may be associated with an increased risk of postpartum hemorrhage.

  • Fetal/Neonatal Adverse Reactions: Neonates exposed to SNRIs or SSRIs late in pregnancy may lead to an increased risk of complications requiring prolonged hospitalization, respiratory support, and tube feeding. 

Nursing Mother Considerations

Risk Summary

  • Consider the developmental and health benefits of breastfeeding along with the mother’s clinical need for Savella and any potential adverse effects on the breastfed child or from the underlying maternal condition.

  • Monitor infants exposed to milnacipran for agitation, irritability, poor feeding and poor weight gain.

Pediatric Considerations

Safety and efficacy have not been established in patients <18 years of age.

Geriatric Considerations

No overall differences in efficacy or safety were observed between elderly patients and younger patients.

Consider possible reduced renal clearance of Savella in elderly patients when determining dose.

Cases of clinically significant hyponatremia have been associated with elderly patients who may be at greater risk for this adverse event.

Savella Pharmacokinetics

Absorption

Maximum concentrations reached within 2–4 hours post dose. Absolute bioavailability: ~85–90%.

Distribution

Mean volume of distribution: ~400 L.

Plasma protein bound: 13%.

Metabolism

Hepatic.

Elimination

Renal. Half-life: 6–8 hours.

Savella Interactions

Interactions

See Contraindications. Avoid IV digoxin (postural hypotension, tachycardia). Increased risk of serotonin syndrome with other serotonergic drugs (eg, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, meperidine, methadone, tryptophan, buspirone, amphetamines, St. John's Wort) or with drugs that impair serotonin metabolism (eg, MAOIs, linezolid, IV methylene blue). Increased risk of bleeding with concomitant aspirin, NSAIDs, or others that affect coagulation. May antagonize certain antihypertensives (eg, clonidine). Caution with other CNS-active drugs. Arrhythmias, hypertension with epinephrine, norepinephrine.

Savella Adverse Reactions

Adverse Reactions

Nausea, vomiting, headache, constipation, dizziness, insomnia, hot flush, hyperhidrosis, palpitations, increased heart rate, dry mouth, hypertension; rare: GU effects in men.

Savella Clinical Trials

Clinical Trials

The efficacy of Savella was established in 2 double-blind, placebo-controlled, multicenter studies (Study 1 and Study 2) in adults 18 to 74 years of age with fibromyalgia. Patients were required to have met the ACR criteria for fibromyalgia. Study 1 was 6 months in duration and Study 2 was 3 months in duration.

Study 1 

  • Patients were randomly assigned to receive total daily doses of Savella 100mg, 200mg, or placebo. Patients had a minimum mean baseline pain score of at least 50mm on a 100mm visual analog scale (VAS) ranging from 0 (“no pain”) to 100 (“worst possible pain”). The mean baseline pain score was 69.

  • A greater proportion of patients treated with Savella achieved at least a 30% reduction in pain from baseline (VAS) and considered themselves globally improved vs patients in the placebo arm.

  • A greater benefit was not observed when patients received Savella 200mg/day vs those who received Savella 100mg/day.

Study 2

  • Patients were randomly assigned to receive total daily doses of Savella 100mg, 200mg, or placebo. Patients had a minimum mean baseline pain score of at least 50mm on a 100mm visual analog scale (VAS) ranging from 0 (“no pain”) to 100 (“worst possible pain”). The mean baseline pain score was 65.

  • A greater proportion of patients treated with Savella achieved at least a 30% reduction in pain from baseline (VAS) and considered themselves globally improved vs patients in the placebo arm.

  • A greater benefit was not observed when patients received Savella 200mg/day vs those who received Savella 100mg/day.

In both studies, some patients who rated themselves as globally “much” or “very much” improved experienced a decrease in pain as early as week 1 of treatment with a stable dose of Savella that persisted throughout these studies.

Savella Note

Not Applicable

Savella Patient Counseling

Patient Counseling

Clinical Worsening and Suicide Risk

  • Advise patients, their families, and their caregivers that patients with depression may be at increased risk for clinical worsening and/or suicidal ideation if they stop taking anti-depressant medication, change the dose, or start a new medication.

Serotonin Syndrome

  • Caution about the risk of serotonin syndrome and seek medical care immediately if symptoms occur. 

Elevated Blood Pressure and Heart Rate

  • Inform patients that HR and BP may increase and to monitor them at regular intervals during treatment.

Increased Risk of Bleeding

  • Use of Savella with NSAIDs, aspirin, or anticoagulants may increase risk of abnormal bleeding.

Angle Closure Glaucoma

  • Advise patients that Savella may cause mild pupillary dilation which can lead to an episode of angle closure glaucoma.

Ability to Drive and Use Machinery

  • Do not operate machinery or drive motor vehicles until patient is reasonably certain that the effects of Savella do not impair their ability.

Alcohol

  • Avoid alcohol during treatment with Savella.

Sexual Dysfunction

  • May cause sexual dysfunction in male and female patients. Discuss any changes and potential management strategies with your healthcare provider.

Discontinuation 

  • Advise that withdrawal symptoms may occur when stopping treatment with Savella, especially if abruptly discontinued.

Pregnancy

  • Advise women to notify physician if they become pregnant or intend to become pregnant during therapy. Advise patients that there is a pregnancy exposure registry.

  • Advise patients that use of Savella in late pregnancy may increase the risk for postpartum hemorrhage and neonatal complications.

Lactation

  • Advise nursing mothers to monitor infants for sedation, agitation, irritability, poor feeding, and poor weight gain and to seek medical care if these symptoms occur.

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