Formoterol fumarate 20 ug/2mL Solution
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the beta2-Adrenergic Agonist class.
Where does this data come from?
🏭 Manufacturer & labeler
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🩺 Clinical
- Formoterol helps keep your airways open over the course of the day. It relaxes the muscles around your airways so air can flow in and out more easily. It's a maintenance medication...
- What exactly is formoterol supposed to do for my COPD?
- No — formoterol is not a rescue inhaler and should not be used for sudden breathlessness or a COPD flare-up. For those moments, you need a separate short-acting inhaler (like albut...
- Can I use it when I'm suddenly struggling to breathe?
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
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UNII 2968PHW8QP
A weak organic acid derived from citrus fruits or made through fermentation. It works as a buffer to control pH, a preservative to extend shelf life, and a flavoring agent in medications.
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UNII 451W47IQ8X
Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
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UNII B22547B95K
A salt derived from citric acid that helps maintain the proper acid-base balance in the medicine. It's used as a buffer to keep the product stable and at the right pH level.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
4 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $1.284 | $77.05 / 60 ml |
| Medicaid paysCMS SDUD · 12 mo | $2.40 | $143.80 / 60 ml |
| Medicare drug plans payPart D · Q2 2026 | $4.51 | $270.71 / 60 ml |
| Medicare Part B allowsASP · J7606 | $1.547 / J7606 unit | — |
Where does this data come from?
🧾 Billing & reimbursement
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Formoterol Fumarate 20 ug/2mL 43598-0778-30 | Dr. | 30 pouches | $1.284 | AN | Availability likely | — |
| Formoterol Fumarate .02 mg/2mL 50742-0394-30 | Ingenus | 30 pouches | $1.284 | AN | Availability likely | — |
| Formoterol Fumarate 20 ug/2mL 62332-0655-30 | Alembic | 30 pouches | $1.284 | AN | Availability likely | — |
| formoterol fumarate 20 ug/2mL 70748-0261-30 | Lupin | 30 pouches | $1.284 | AN | Availability likely | — |
| Formoterol fumarate 20 ug/2mLthis 72603-0620-30 | NorthStar | 30 pouches | $1.284 | AN | Availability likely | — |
| Formoterol fumarate 20 ug/2mL 73043-0051-93 | Devatis, | 30 pouches | $1.284 | AN | Availability likely | — |
| Formoterol Fumarate Inhalation Solution 20 ug/2mL 76204-0030-01 | Ritedose | 30 pouches | $1.284 | AN | Availability likely | — |
| Formoterol fumarate 20 ug/2mL 00093-4061-06 | Teva | 60 pouches | $1.337 | AN | Availability likely | +4% |
| Formoterol Fumarate 20 ug/2mL 00378-1631-91 | Mylan | 60 pouches | $1.337 | AN | Availability likely | +4% |
| Formoterol fumarate 20 ug/2mL 42571-0463-62 | Micro | 60 pouches | $1.337 | AN | Availability likely | +4% |
| Formoterol fumarate 20 ug/2mL 70756-0608-60 | Lifestar | 60 pouches | $1.337 | AN | Availability likely | +4% |
| Formoterol fumarate 20 ug/2mL 00904-7454-11 | Major | 30 pouches | $1.871 | AN | Discontinued | +46% |
| Perforomist 20 ug/2mL 49502-0605-05 | Viatris | 5 pouches | — | AN | FDA listed | — |
| Formoterol fumarate 20 ug/2mL 63629-8813-01 | Bryant | 30 pouches | — | AN | FDA listed | — |
| Formoterol fumarate 20 ug/2mL 63629-8814-01 | Bryant | 60 pouches | — | AN | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
🗺️ Medicaid utilization & spend
💊 Medicaid utilization by pack size
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Status |
|---|---|---|---|---|---|
| 72603-0620-30 You're viewing this | 30 POUCH in 1 CARTON (72603-620-30) / 1 VIAL in 1 POUCH (72603-620-01) / 2 mL in 1 VIAL | $1.28 / mL | $77.05 | 2024-07-01 | Active |
| 72603-0620-60 | 60 POUCH in 1 CARTON (72603-620-60) / 4 VIAL in 1 POUCH (72603-620-04) / 2 mL in 1 VIAL | $1.34 / mL | $641.92 | 2024-07-01 | Active |
This pack has the lowest per-mL cost of the 2 priced pack sizes ($1.28 NADAC).
This pack accounts for about 27% of this product's recent Medicaid fills; most go to a different pack size. See all packs ↓
Pack size FAQ
What quantity is in NDC 72603-0620-30?
What NDC number is used to bill for this package of Formoterol fumarate 20 ug/2mL Solution?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Formoterol fumarate inhalation solution is a long-acting beta 2 -adrenergic agonist (beta 2 -agonist) indicated for: Long-term, twice daily (morning and evening) administration in the maintenance treatment of bronchoconstriction in patients with chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema. ( 1.1 ) Important limitations of use: Formoterol fumarate inhalation solution is not indicated to treat acute deteriorations of chronic obstructive pulmonary disease.
( 1.2 , 5.2 ) Formoterol fumarate inhalation solution is not indicated to treat asthma. ( 1.2 )
1.1Maintenance Treatment of COPD Formoterol fumarate inhalation solution is indicated for the long-term, twice daily (morning and evening) administration in the maintenance treatment of bronchoconstriction in patients with chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema.
1.2Important Limitations of Use Formoterol fumarate inhalation solution is not indicated to treat acute deteriorations of chronic obstructive pulmonary disease [see WARNINGS AND PRECAUTIONS (5.2) ]. Formoterol fumarate inhalation solution is not indicated to treat asthma. The safety and effectiveness of formoterol fumarate inhalation solution in asthma have not been established.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION The recommended dose of formoterol fumarate inhalation solution is one 20 mcg unit-dose vial administered twice daily (morning and evening) by nebulization. A total daily dose greater than 40 mcg is not recommended. Formoterol fumarate inhalation solution should be administered by the orally inhaled route via a standard jet nebulizer connected to an air compressor.
The safety and efficacy of formoterol fumarate inhalation solution have been established in clinical trials when administered using the PARI-LC Plus ® nebulizer (with a facemask or mouthpiece) and the PRONEB ® Ultra compressor. The safety and efficacy of formoterol fumarate inhalation solution delivered from non-compressor based nebulizer systems have not been established. Formoterol fumarate inhalation solution should always be stored in the foil pouch, and only removed IMMEDIATELY BEFORE USE.
Contents of any partially used container should be discarded. If the recommended maintenance treatment regimen fails to provide the usual response, medical advice should be sought immediately, as this is often a sign of destabilization of COPD. Under these circumstances, the therapeutic regimen should be re-evaluated and additional therapeutic options should be considered.
The drug compatibility (physical and chemical), efficacy, and safety of formoterol fumarate inhalation solution when mixed with other drugs in a nebulizer have not been established. For oral inhalation only. One 20 mcg/2 mL vial every 12 hours ( 2 ) For use with a standard jet nebulizer (with a facemask or mouthpiece) connected to an air compressor ( 2 )
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Formoterol fumarate inhalation solution is supplied as a sterile solution for nebulization in low-density polyethylene unit-dose vials. Each vial contains formoterol fumarate dihydrate, USP equivalent to 20 mcg/2 mL of formoterol fumarate. Inhalation Solution (unit dose vial for nebulization); 20 mcg/2 mL solution ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS Use of a LABA, including formoterol fumarate inhalation solution, without an inhaled corticosteroid is contraindicated in patients with asthma [see WARNINGS and PRECAUTIONS (5.1) ]. Formoterol fumarate inhalation solution is not indicated for the treatment of asthma. Use of a LABA, including formoterol fumarate inhalation solution, without an inhaled corticosteroid is contraindicated in patients with asthma. ( 4 )
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS LABA as monotherapy (without inhaled corticosteroid) for asthma increases the risk of serious asthma-related events. ( 5.1 ) Do not initiate formoterol fumarate inhalation solution in acutely deteriorating patients. ( 5.2 ) Do not use for relief of acute symptoms.
Concomitant short-acting beta 2 -agonists can be used as needed for acute relief. ( 5.2 ) Do not exceed the recommended dose. Excessive use of formoterol fumarate inhalation solution or use in conjunction with other medications containing long-acting beta 2 -agonists, can result in clinically significant cardiovascular effects, and may be fatal.
( 5.3 , 5.5 ) Life-threatening paradoxical bronchospasm can occur. Discontinue formoterol fumarate inhalation solution immediately. ( 5.4 ) Use with caution in patients with cardiovascular or convulsive disorders, thyrotoxicosis, or with sensitivity to sympathomimetic drugs.
( 5.6 , 5.7 )
5.1Serious Asthma-Related Events – Hospitalizations, Intubations, Death The safety and efficacy of formoterol fumarate inhalation solution in patients with asthma have not been established. Formoterol fumarate inhalation solution is not indicated for the treatment of asthma [see CONTRAINDICATIONS (4) ] . Use of long-acting beta 2 -adrenergic agonists (LABA) as monotherapy [without inhaled corticosteroids (ICS)] for asthma is associated with an increased risk of asthma-related death.
Available data from controlled clinical trials also suggest that use of LABA as monotherapy increases the risk of asthma-related hospitalization in pediatric and adolescent patients. These findings are considered a class effect of LABA monotherapy. When LABA are used in fixed-dose combination with ICS, data from large clinical trials do not show a significant increase in the risk of serious asthma-related events (hospitalizations, intubations, death) compared with ICS alone.
A 28-week, placebo-controlled US study comparing the safety of another LABA (salmeterol) with placebo, each added to usual asthma therapy, showed an increase in asthma-related deaths in patients receiving salmeterol (13/13,176 in patients treated with salmeterol vs. 3/13,179 in patients treated with placebo; RR 4.37, 95% CI 1.25, 15.34). The increased risk of asthma-related death is considered a class effect of the long-acting beta 2 -adrenergic agonists, including formoterol fumarate inhalation solution.
No study adequate to determine whether the rate of asthma related death is increased in patients treated with formoterol fumarate inhalation solution has been conducted. Clinical studies with formoterol fumarate administered as a dry powder inhaler suggested a higher incidence of serious asthma exacerbations in patients who received formoterol than in those who received placebo. The sizes of these studies were not adequate to precisely quantify the differences in serious asthma exacerbation rates between treatment groups.
Available data do not suggest an increased risk of death with use of LABA in patients with COPD.
5.2Deterioration of Disease and Acute Episodes Formoterol fumarate inhalation solution should not be initiated in patients with acutely deteriorating COPD, which may be a life-threatening condition. Formoterol fumarate inhalation solution has not been studied in patients with acutely deteriorating COPD. The use of formoterol fumarate inhalation solution in this setting is inappropriate.
Formoterol fumarate inhalation solution should not be used for the relief of acute symptoms, i.e., as rescue therapy for the treatment of acute episodes of bronchospasm. Formoterol fumarate inhalation solution has not been studied in the relief of acute symptoms and extra doses should not be used for that purpose. Acute symptoms should be treated with an inhaled short-acting beta 2 -agonist.
When beginning formoterol fumarate inhalation solution, patients who have been taking inhaled, short-acting beta 2 -agonists on a regular basis (e.g., four times a day) should be…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS Long-acting beta 2 -adrenergic agonists, such as formoterol fumarate inhalation solution, as monotherapy (without an inhaled corticosteroid) for asthma increase the risk of asthma-related events. Formoterol fumarate inhalation solution is not indicated for the treatment of asthma [see WARNINGS AND PRECAUTIONS (5.1) ]. Most common adverse reactions ( > 2% and more common than placebo) are diarrhea, nausea, nasopharyngitis, dry mouth, vomiting, dizziness, and insomnia ( 6.2 ) To report SUSPECTED ADVERSE REACTIONS, contact NorthStar Rx LLC at 1-800-206-7821 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Beta 2 -Agonist Adverse Reaction Profile Adverse reactions to formoterol fumarate inhalation solution are expected to be similar in nature to other beta 2 -adrenergic receptor agonists including: angina, hypertension or hypotension, tachycardia, arrhythmias, nervousness, headache, tremor, dry mouth, muscle cramps, palpitations, nausea, dizziness, fatigue, malaise, insomnia, hypokalemia, hyperglycemia, and metabolic acidosis.
6.2Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Adults with COPD The data described below reflect exposure to formoterol fumarate inhalation solution 20 mcg twice daily by oral inhalation in 586 patients, including 232 exposed for 6 months and 155 exposed for at least 1 year.
Formoterol fumarate inhalation solution was studied in a 12-week, placebo- and active-controlled trial (123 subjects treated with formoterol fumarate inhalation solution) and a 52-week, active-controlled trial (463 subjects treated with formoterol fumarate inhalation solution). Patients were mostly Caucasians (88%) between 40-90 years old (mean, 64 years old) and had COPD, with a mean FEV 1 of
1.33L. Patients with significant concurrent cardiac and other medical diseases were excluded from the trials. Table 1 shows adverse reactions from the 12-week, double-blind, placebo-controlled trial where the frequency was greater than or equal to 2% in the formoterol fumarate inhalation solution group and where the rate in the formoterol fumarate inhalation solution group exceeded the rate in the placebo group.
In this trial, the frequency of patients experiencing cardiovascular adverse events was 4.1% for formoterol fumarate inhalation solution and 4.4% for placebo. There were no frequently occurring specific cardiovascular adverse events for formoterol fumarate inhalation solution (frequency greater than or equal to 1% and greater than placebo). The rate of COPD exacerbations was 4.1% for formoterol fumarate inhalation solution and 7.9% for placebo.
TABLE 1 Number of patients with adverse reactions in the 12-week multiple-dose controlled clinical trial Adverse Reaction Formoterol Fumarate Inhalation Solution 20 mcg Placebo n % n % Total Patients 123 (100) 114 (100) Diarrhea 6 (4.9) 4 (3.5) Nausea 6 (4.9) 3 (2.6) Nasopharyngitis 4 (3.3) 2 (1.8) Dry Mouth 4 (3.3) 2 (1.8) Vomiting 3 (2.4) 2 (1.8) Dizziness 3 (2.4) 1 (0.9) Insomnia 3 (2.4) 0 (0) Patients treated with formoterol fumarate inhalation solution 20 mcg twice daily in the 52-week open-label trial did not experience an increase in specific clinically significant adverse events above the number expected based on the medical condition and age of the patients.
6.3Postmarketing Experience The following adverse reactions have been reported during post-approval use of formoterol fumarate inhalation solution. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Anaphylactic reactions, urticaria, angioedema (presenting as face, lip, tongue, eye, pharyngeal, or mouth edema), rash, an…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Other adrenergic drugs may potentiate effect. Use with caution. ( 5.3 , 7.1 ) Xanthine derivatives, steroids, diuretics, or non-potassium sparing diuretics may potentiate hypokalemia or ECG changes.
Use with caution. ( 5.7 , 7.2 , 7.3 ) MAO inhibitors, tricyclic antidepressants and drugs that prolong QTc interval may potentiate effect on the cardiovascular system. Use with extreme caution.
( 7.4 ) Beta-blockers may decrease effectiveness. Use with caution and only when medically necessary. ( 7.5 )
7.1Adrenergic Drugs If additional adrenergic drugs are to be administered by any route, they should be used with caution because the sympathetic effects of formoterol may be potentiated [see WARNINGS AND PRECAUTIONS ( 5.3 , 5.5 , 5.6 , 5.7 )].
7.2Xanthine Derivatives, Steroids, or Diuretics Concomitant treatment with xanthine derivatives, steroids, or diuretics may potentiate any hypokalemic effect of adrenergic agonists [see WARNINGS AND PRECAUTIONS (5.7) ].
7.3Non-potassium Sparing Diuretics The ECG changes and/or hypokalemia that may result from the administration of non-potassium sparing diuretics (such as loop or thiazide diuretics) can be acutely worsened by beta-agonists, especially when the recommended dose of the beta-agonist is exceeded. Although the clinical significance of these effects is not known, caution is advised in the co-administration of beta-agonists with non-potassium sparing diuretics.
7.4MAO Inhibitors, Tricyclic Antidepressants, QTc Prolonging Drugs Formoterol, as with other beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval because the effect of adrenergic agonists on the cardiovascular system may be potentiated by these agents. Drugs that are known to prolong the QTc interval have an increased risk of ventricular arrhythmias.
7.5Beta-blockers Beta-adrenergic receptor antagonists (beta-blockers) and formoterol may inhibit the effect of each other when administered concurrently. Beta-blockers not only block the therapeutic effects of beta-agonists, but may produce severe bronchospasm in COPD patients. Therefore, patients with COPD should not normally be treated with beta-blockers.
However, under certain circumstances, e.g., as prophylaxis after myocardial infarction, there may be no acceptable alternatives to the use of beta-blockers in patients with COPD. In this setting, cardioselective beta-blockers could be considered, although they should be administered with caution.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS
8.1Pregnancy Risk Summary There are limited available data with formoterol fumarate inhalation solution use in pregnant women to inform a drug-associated risk of adverse developmental outcomes. Beta-agonists may interfere with uterine contractility (see Clinical Considerations) . In animal reproduction studies, oral administration of formoterol fumarate to pregnant rats and rabbits caused increased fetal malformations (rats and rabbits), decreased fetal weight (rats), and increased neonatal mortality (rats) following administration of doses that produced exposures approximately 730 to 29,000 times the MRHD on a mg/m 2 or AUC basis.
These adverse effects generally occurred at large multiples of the MRHD when formoterol fumarate was administered by the oral route to achieve high systemic exposures. No effects were observed in a study with rats that received formoterol fumarate by the inhalation route at an exposure approximately 300 times the MRHD (see Data) . The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Clinical Considerations Labor or delivery There are no adequate and well-controlled human studies that have studied the effects of formoterol fumarate inhalation solution during labor and delivery.
Because of the potential for beta-agonists interference with uterine contractility, use of formoterol fumarate inhalation solution during labor should be restricted to those patients in whom the benefits clearly outweigh the risk. Data Animal Data In embryofetal development studies with pregnant rats and rabbits dosed throughout the period of organogenesis, formoterol fumarate did not cause malformations in either species. However, for pregnant rats dosed throughout organogenesis, formoterol fumarate caused delayed fetal ossification at an exposure approximately 50 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 200 mcg/kg and higher) and decreased fetal weight at an exposure approximately 1,500 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 6,000 mcg/kg and above).
In a pre- and post-natal development study with rats dosed during the late stage of pregnancy, formoterol fumarate caused stillbirth and neonatal mortality at an exposure approximately 1,500 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 6,000 mcg/kg and above). However, no effects were observed in this study at an exposure approximately 50 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 200 mcg/kg). In embryofetal development studies, conducted by another testing laboratory, with pregnant rats and rabbits dosed throughout the period of organogenesis, formoterol fumarate was teratogenic in both species.
Umbilical hernia, a malformation, was observed in rat fetuses at exposures approximately 730 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 3,000 mcg/kg/day and above). Brachygnathia, a skeletal malformation, was observed in rat fetuses at an exposure approximately 3,600 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 15,000 mcg/kg/day). In another study with rats, no teratogenic effects were observed with exposures up to approximately 300 times the MRHD (on a mcg/m 2 basis with a maternal inhalation dose of 1,200 mcg/kg/day).
Subcapsular cysts on the liver were observed in rabbit fetuses at an exposure approximately 29,000 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 60,000 mcg/kg/day). No teratogenic effects were observed with exposures up to approximately 1,700 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 3,500 mcg/kg).
8.2 Lactation Risk Summary There are no well-controlled human studies o…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary There are limited available data with formoterol fumarate inhalation solution use in pregnant women to inform a drug-associated risk of adverse developmental outcomes. Beta-agonists may interfere with uterine contractility (see Clinical Considerations) . In animal reproduction studies, oral administration of formoterol fumarate to pregnant rats and rabbits caused increased fetal malformations (rats and rabbits), decreased fetal weight (rats), and increased neonatal mortality (rats) following administration of doses that produced exposures approximately 730 to 29,000 times the MRHD on a mg/m 2 or AUC basis.
These adverse effects generally occurred at large multiples of the MRHD when formoterol fumarate was administered by the oral route to achieve high systemic exposures. No effects were observed in a study with rats that received formoterol fumarate by the inhalation route at an exposure approximately 300 times the MRHD (see Data) . The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Clinical Considerations Labor or delivery There are no adequate and well-controlled human studies that have studied the effects of formoterol fumarate inhalation solution during labor and delivery.
Because of the potential for beta-agonists interference with uterine contractility, use of formoterol fumarate inhalation solution during labor should be restricted to those patients in whom the benefits clearly outweigh the risk. Data Animal Data In embryofetal development studies with pregnant rats and rabbits dosed throughout the period of organogenesis, formoterol fumarate did not cause malformations in either species. However, for pregnant rats dosed throughout organogenesis, formoterol fumarate caused delayed fetal ossification at an exposure approximately 50 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 200 mcg/kg and higher) and decreased fetal weight at an exposure approximately 1,500 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 6,000 mcg/kg and above).
In a pre- and post-natal development study with rats dosed during the late stage of pregnancy, formoterol fumarate caused stillbirth and neonatal mortality at an exposure approximately 1,500 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 6,000 mcg/kg and above). However, no effects were observed in this study at an exposure approximately 50 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 200 mcg/kg). In embryofetal development studies, conducted by another testing laboratory, with pregnant rats and rabbits dosed throughout the period of organogenesis, formoterol fumarate was teratogenic in both species.
Umbilical hernia, a malformation, was observed in rat fetuses at exposures approximately 730 times the MRHD (on a mcg/m 2 basis with maternal oral doses of 3,000 mcg/kg/day and above). Brachygnathia, a skeletal malformation, was observed in rat fetuses at an exposure approximately 3,600 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 15,000 mcg/kg/day). In another study with rats, no teratogenic effects were observed with exposures up to approximately 300 times the MRHD (on a mcg/m 2 basis with a maternal inhalation dose of 1,200 mcg/kg/day).
Subcapsular cysts on the liver were observed in rabbit fetuses at an exposure approximately 29,000 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 60,000 mcg/kg/day). No teratogenic effects were observed with exposures up to approximately 1,700 times the MRHD (on a mcg/m 2 basis with a maternal oral dose of 3,500 mcg/kg).
🧒 Pediatric Use ▾
8.4Pediatric Use Formoterol fumarate inhalation solution is not indicated for use in children. The safety and effectiveness of formoterol fumarate inhalation solution in pediatric patients have not been established. The pharmacokinetics of formoterol fumarate has not been studied in pediatric patients.
🧓 Geriatric Use ▾
8.5Geriatric Use Of the 586 subjects who received formoterol fumarate inhalation solution in clinical studies, 284 were 65 years and over, while 89 were 75 years and over. Of the 123 subjects who received formoterol fumarate inhalation solution in the 12-week safety and efficacy trial, 48 (39%) were 65 years of age or older. No overall differences in safety or effectiveness were observed between these subjects and younger subjects.
Other reported clinical experience has not identified differences in responses between the elderly and younger adult patients, but greater sensitivity of some older individuals cannot be ruled out. The pharmacokinetics of formoterol fumarate inhalation solution has not been studied in elderly subjects.
🆘 Overdosage ▾
10 OVERDOSAGE The expected signs and symptoms with overdosage of formoterol fumarate inhalation solution are those of excessive beta-adrenergic stimulation and/or occurrence or exaggeration of any of the signs and symptoms listed under ADVERSE REACTIONS. Signs and symptoms may include angina, hypertension or hypotension, tachycardia with rates up to 200 beats/min, arrhythmias, nervousness, headache, tremor, seizures, muscle cramps, dry mouth, palpitation, nausea, dizziness, fatigue, malaise, insomnia, hyperglycemia, hypokalemia, and metabolic acidosis.
As with all inhaled sympathomimetic medications, cardiac arrest and even death may be associated with an overdose of formoterol fumarate inhalation solution. Treatment of overdosage consists of discontinuation of formoterol fumarate inhalation solution together with institution of appropriate symptomatic and/or supportive therapy. The judicious use of a cardioselective beta-receptor blocker may be considered, bearing in mind that such medication can produce bronchospasm.
There is insufficient evidence to determine if dialysis is beneficial for overdosage of formoterol fumarate inhalation solution. Cardiac monitoring is recommended in cases of overdosage. For additional information about overdose treatment, call a poison control center (1-800-222-1222).
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Formoterol fumarate is a long-acting, beta 2 -adrenergic receptor agonist (beta 2 -agonist). Inhaled formoterol fumarate acts locally in the lung as a bronchodilator. In vitro studies have shown that formoterol has more than 200-fold greater agonist activity at beta 2 -receptors than at beta 1 -receptors.
Although beta 2 -receptors are the predominant adrenergic receptors in bronchial smooth muscle and beta 1 -receptors are the predominant receptors in the heart, there are also beta 2 -receptors in the human heart comprising 10% to 50% of the total beta-adrenergic receptors. The precise function of these receptors has not been established, but they raise the possibility that even highly selective beta 2 -agonists may have cardiac effects. The pharmacologic effects of beta 2 -adrenoceptor agonist drugs, including formoterol, are at least in part attributable to stimulation of intracellular adenyl cyclase, the enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic-3', 5'-adenosine monophosphate (cyclic AMP).
Increased cyclic AMP levels cause relaxation of bronchial smooth muscle and inhibition of release of mediators of immediate hypersensitivity from cells, especially from mast cells. In vitro tests show that formoterol is an inhibitor of the release of mast cell mediators, such as histamine and leukotrienes, from the human lung. Formoterol also inhibits histamine-induced plasma albumin extravasation in anesthetized guinea pigs and inhibits allergen-induced eosinophil influx in dogs with airway hyper-responsiveness.
The relevance of these in vitro and animal findings to humans with COPD is unknown.
12.2Pharmacodynamics Systemic Safety and Pharmacokinetic / Pharmacodynamic Relationships The major adverse effects of inhaled beta 2 -agonists occur as a result of excessive activation of the systemic beta-adrenergic receptors. The most common adverse effects in adults include skeletal muscle tremor and cramps, insomnia, tachycardia, decreases in plasma potassium, and increases in plasma glucose. Changes in serum potassium and serum glucose were evaluated in 12 COPD patients following inhalation of single doses of formoterol fumarate inhalation solution containing 10, 20 and 244 mcg of formoterol fumarate (calculated on an anhydrous basis) in a crossover study.
At 1 hour after treatment with formoterol fumarate inhalation solution, mean (± standard deviation) serum glucose rose 26 ± 30, 29 ± 28, and 38 ± 44 mg/dL, respectively, and was not significantly different from baseline or trough level at 24 hours post-dose. At 1 hour after dosing with formoterol fumarate inhalation solution 244 mcg, serum potassium fell by 0.68 ± 0.4 mEq/L, and was not different from baseline or trough level at 24 hours post-dose. Linear pharmacokinetic/pharmacodynamic (PK/PD) relationships between urinary formoterol excretion and decreases in serum potassium, increases in plasma glucose, and increases in heart rate were generally observed with another inhalation formulation of formoterol fumarate and hence would be expected with formoterol fumarate inhalation solution also.
Following single dose administration of 10-fold the recommended clinical dose of the other formoterol fumarate inhalation formulation having comparable exposure to single dose of 244 mcg of formoterol fumarate inhalation solution (approximately 12-fold the recommended clinical dose) in healthy subjects, the formoterol plasma concentration was found to be highly correlated with the reduction in plasma potassium concentration. Data from this study showed that maximum reductions from baseline in plasma potassium ranged from 0.55 to 1.52 mmol/L with a median maximum reduction of 1.01 mmol/L.
Generally, the maximum effect on plasma potassium was noted 1 to 3 hours after peak formoterol plasma concentrations were achieved. Electrophysiology In the dose-ranging study of formoterol fumarate inhalation solution, ECG-determi…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Formoterol fumarate is a long-acting, beta 2 -adrenergic receptor agonist (beta 2 -agonist). Inhaled formoterol fumarate acts locally in the lung as a bronchodilator. In vitro studies have shown that formoterol has more than 200-fold greater agonist activity at beta 2 -receptors than at beta 1 -receptors.
Although beta 2 -receptors are the predominant adrenergic receptors in bronchial smooth muscle and beta 1 -receptors are the predominant receptors in the heart, there are also beta 2 -receptors in the human heart comprising 10% to 50% of the total beta-adrenergic receptors. The precise function of these receptors has not been established, but they raise the possibility that even highly selective beta 2 -agonists may have cardiac effects. The pharmacologic effects of beta 2 -adrenoceptor agonist drugs, including formoterol, are at least in part attributable to stimulation of intracellular adenyl cyclase, the enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic-3', 5'-adenosine monophosphate (cyclic AMP).
Increased cyclic AMP levels cause relaxation of bronchial smooth muscle and inhibition of release of mediators of immediate hypersensitivity from cells, especially from mast cells. In vitro tests show that formoterol is an inhibitor of the release of mast cell mediators, such as histamine and leukotrienes, from the human lung. Formoterol also inhibits histamine-induced plasma albumin extravasation in anesthetized guinea pigs and inhibits allergen-induced eosinophil influx in dogs with airway hyper-responsiveness.
The relevance of these in vitro and animal findings to humans with COPD is unknown.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Formoterol fumarate inhalation solution is supplied as a 20 mcg/2 mL sterile clear, colorless solution for nebulization in 2.5 mL low-density polyethylene unit dose vials. Each vial is overwrapped in a foil pouch and supplied in cartons as listed below. Carton of 30 individually wrapped unit dose vials, NDC 72603-620-30 Carton of 60 unit dose vials (15×4 unit-dose vials per pouch), NDC 72603-620-60 Storage and Handling: Prior to dispensing to the patient : Store in a refrigerator, 2°C to 8°C (36°F to 46°F).
Protect pouch from light and heat. After dispensing to the patient: Store in a refrigerator at 2°C to 8°C (36°F to 46°F) and discard when drug expires or store at room temperature, 20°C to 25°C (68°F to 77°F) and discard if not used after 3 months. Protect pouch from light and heat.
After opening the pouch, unused unit dose vials should be returned to, and stored in, the pouch. An opened unit dose vial should be used right away. Formoterol fumarate inhalation solution should only be administered via a standard jet nebulizer connected to an air compressor with an adequate airflow and equipped with a facemask or mouthpiece.
Vial should always be stored in the foil pouch, and only removed IMMEDIATELY before use. Do not take by mouth. Contents of any partially used container should be discarded.
Discard the container and top after use.
📋 Description ▾
11 DESCRIPTION Formoterol fumarate inhalation solution is supplied as 2 mL of formoterol fumarate inhalation aqueous solution administration by nebulization packaged in a 2.5 mL single-use low-density polyethylene vial and overwrapped in a foil pouch. Each vial contains 2 mL of a clear, colorless solution composed of formoterol fumarate dihydrate, USP equivalent to 20 mcg of formoterol fumarate in an isotonic, sterile aqueous solution containing sodium chloride, pH adjusted to 5.0 with citric acid and sodium citrate.
The active component of formoterol fumarate inhalation solution is formoterol fumarate dihydrate, USP, a racemate. Formoterol fumarate dihydrate is a beta 2 -adrenergic bronchodilator. Its chemical name is (±)-2-hydroxy-5-[(1RS)-1-hydroxy-2-[[(1RS)-2-(4-methoxyphenyl)-1-methylethyl]-amino]ethyl]formanilide fumarate dihydrate; its structural formula is: Formoterol fumarate dihydrate, USP has a molecular weight of 840.92 and its empirical formula is (C 19 H 24 N 2 O 4 ) 2 •C 4 H 4 O 4 •2H 2 O.
Formoterol fumarate dihydrate, USP is a white or almost white or slightly yellow powder, which is freely soluble in glacial acetic acid, soluble in methanol, sparingly soluble in ethanol and isopropanol, slightly soluble in water, and practically insoluble in acetone, ethyl acetate, and diethyl ether. Formoterol fumarate inhalation solution does not require dilution prior to administration by nebulization. Like all other nebulized treatments, the amount delivered to the lungs will depend on patient factors and the nebulization system used and its performance.
Using the PARI-LC Plus ® nebulizer (with a facemask or mouthpiece) connected to a PRONEB ® Ultra compressor under in vitro conditions, the mean delivered dose from the mouthpiece was approximately 7.3 mcg (37% of label claim). The mean nebulizer flow rate was 4 LPM and the nebulization time was 9 minutes. Formoterol fumarate inhalation solution should be administered from a standard jet nebulizer at adequate flow rates via a facemask or mouthpiece.
Structural Formula
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information and Instructions for Use). Serious Asthma-Related Events Inform patients that long-acting beta agonist, such as formoterol fumarate inhalation solution, when used as monotherapy [without an inhaled corticosteroid], increase the risk of serious asthma-related events, including asthma-related death. Formoterol fumarate inhalation solution is not indicated for the treatment of asthma.
Acute Exacerbations or Deteriorations Formoterol fumarate inhalation solution is not indicated for relief of acute symptoms, and extra doses should not be used for that purpose. Acute symptoms should be treated with an inhaled, short-acting beta 2 -agonist (the healthcare provider should provide the patient with such medication and instruct the patient in how it should be used). Patients should be instructed to seek medical attention if their symptoms worsen despite recommended doses of formoterol fumarate inhalation solution, if formoterol fumarate inhalation solution treatment becomes less effective, or if they need more inhalations of a short-acting beta 2 -agonist than usual.
Appropriate Dosing Patients should not stop using formoterol fumarate inhalation solution unless told to do so by a healthcare provider because symptoms may get worse. Patients should not inhale more than the prescribed number of vials at any one time. The daily dosage of formoterol fumarate inhalation solution should not exceed one vial twice daily (40 mcg total daily dose).
Excessive use of sympathomimetics may cause significant cardiovascular effects and may be fatal. Concomitant Therapy Patients who have been taking inhaled, short-acting beta 2 -agonists (e.g., albuterol) on a regular basis should be instructed to discontinue the regular use of these products and use them only for symptomatic relief of acute symptoms. Formoterol fumarate inhalation solution should not be used in conjunction with other inhaled medications containing long-acting beta 2 -agonists.
Patients should be warned not to stop or change the dose of other concomitant COPD therapy without medical advice, even if symptoms improve after initiating treatment with formoterol fumarate inhalation solution. Common Adverse Reactions with Beta 2 -agonists Patients should be informed that treatment with beta 2 -agonists may lead to adverse reactions that include palpitations, chest pain, rapid heart rate, increased or decreased blood pressure, headache, tremor, nervousness, dry mouth, muscle cramps, nausea, dizziness, fatigue, malaise, low blood potassium, high blood sugar, high blood acid, or trouble sleeping [see ADVERSE REACTIONS (6.1) ].
Instructions for Administration It is important that patients understand how to use formoterol fumarate inhalation solution with a nebulizer appropriately [see the accompanying Patient Information]. Patients should be instructed not to mix other medications with formoterol fumarate inhalation solution or ingest formoterol fumarate inhalation solution. Patients should throw the plastic dispensing container away immediately after use.
Due to their small size, the container and top pose a danger of choking to young children. Manufactured for: Northstar Rx LLC Memphis, TN 38141. Manufactured by: Mankind Pharma Limited Paonta Sahib, Sirmaur Himachal Pradesh 173025, India.
Revised: March 2024, V-01 The brands listed are trademarks of their respective owners.