Head-to-head clinical analysis & difference comparison: details on mechanism of action, dosing, half-life, interactions, and maternal-fetal safety.
BREO ELLIPTA vs ALA-SCALP
Clinician-reviewed, head-to-head comparison of mechanism, dosing, pharmacokinetics, and safety profiles.
Last clinically reviewed: July 2026 · OpiCalc Medical Review Team
Combination of fluticasone furoate, a corticosteroid that binds to glucocorticoid receptors to inhibit inflammatory gene transcription, and vilanterol, a long-acting beta2-adrenergic agonist that activates adenylate cyclase leading to bronchodilation.
ALA-SCALP (aminolevulinic acid) is a photosensitizer precursor that is converted intracellularly to protoporphyrin IX (Pp IX), which accumulates in cells with increased heme synthesis, such as rapidly dividing cells. Upon exposure to blue light (BLU-U®), Pp IX produces reactive oxygen species, leading to cellular damage and apoptosis of targeted cells.
Maintenance treatment of chronic obstructive pulmonary disease (COPD) including chronic bronchitis and/or emphysema,Maintenance treatment of asthma in patients aged 18 years and older
Treatment of minimally to moderately thick actinic keratoses of the scalp (Grade 1 or 2) in immunocompetent patients,Off-label: other photosensitivity disorders
One inhalation (100 mcg fluticasone furoate / 25 mcg vilanterol) once daily via oral inhalation.
Topical application of a 5% solution to the scalp twice daily.
Fluticasone furoate: 24 hours (supports once-daily dosing). Vilanterol: 11 hours (supports once-daily dosing).
Not applicable; topical ALA-SCALP is not significantly absorbed systemically. After systemic absorption from photodynamic therapy, terminal half-life is approximately 1 hour due to rapid metabolism.
Fluticasone furoate: primarily metabolized by CYP3A4; Vilanterol: primarily metabolized by CYP3A4.
ALA is metabolized intracellularly via the heme biosynthesis pathway to protoporphyrin IX (Pp IX).
Fluticasone furoate is eliminated primarily via fecal excretion (approximately 101% of an oral dose) due to biliary clearance, with minimal renal excretion (<1%). Vilanterol is eliminated via metabolism and subsequent renal (approximately 70% of an IV dose) and fecal (approximately 30% of an IV dose) excretion.
Primarily renal elimination of metabolites; <1% excreted unchanged in urine. Biliary/fecal excretion is negligible.
Fluticasone furoate: >99.8% (primarily albumin). Vilanterol: approximately 94% (albumin and alpha-1-acid glycoprotein).
Not characterized; systemic levels are negligible after topical administration.
Fluticasone furoate: approximately 4.5 L/kg (extensive tissue distribution). Vilanterol: approximately 165 L (large Vd, extensive distribution).
Not applicable for topical route. If systemic exposure occurs, Vd is approximately 0.5 L/kg, consistent with distribution into total body water.
Inhaled: Fluticasone furoate absolute bioavailability approximately 15% (lung deposition). Vilanterol absolute bioavailability approximately 27% (lung deposition). Oral bioavailability is negligible for both (<2% for fluticasone furoate, <5% for vilanterol).
Topical: Systemic bioavailability is minimal (<1%) due to poor percutaneous absorption and rapid local metabolism.
No dosage adjustment required for renal impairment. However, use with caution in severe renal impairment due to potential for increased systemic exposure.
No dose adjustment required for renal impairment.
Child-Pugh Class A and B: No dosage adjustment recommended. Child-Pugh Class C: Contraindicated.
No dose adjustment required for hepatic impairment.
Indicated for children aged 5 years and older with asthma. For ages 5-11: one inhalation of 100 mcg/25 mcg once daily. For ages 12 and older: same as adult dosing.
Safety and efficacy in pediatric patients have not been established.
No dose adjustment required for elderly patients. Use with caution due to increased risk of comorbidities and adverse effects.
No specific dose adjustment recommended; use with caution due to potential increased sensitivity.
Long-acting beta2-adrenergic agonists (LABAs) increase the risk of asthma-related death. Use only as additional therapy for patients not adequately controlled on a long-term asthma control medication or whose disease severity warrants initiation of both an inhaled corticosteroid and a LABA.
No FDA black box warning.
Increased risk of asthma-related death when used as monotherapy for asthma without inhaled corticosteroid,Candida infections of the mouth and pharynx,Pneumonia in patients with COPD,Adrenal insufficiency,Hypercorticism and adrenal suppression,Paradoxical bronchospasm,Hypersensitivity reactions including anaphylaxis,Cardiovascular effects like increased blood pressure and heart rate,Eosinophilic conditions,Reduced bone mineral density,Glaucoma and cataracts
Photosensitivity: avoid exposure to sunlight or bright indoor light (e.g., examination lamps, operating room lamps) for at least 40 hours post-application.,Application site reactions: severe stinging, burning, erythema, and edema may occur.,Use sun-protective measures (e.g., wide-brimmed hat, sunscreen) after treatment.,Do not apply to eyes or mucous membranes.
Status asthmaticus or acute episodes of COPD requiring intensive therapy,Primary treatment of acute asthma exacerbation,Severe hypersensitivity to milk proteins or any ingredient
Hypersensitivity to aminolevulinic acid or any component of the formulation,Cutaneous photosensitivity at wavelengths of 400-450 nm,Porphyria
No specific food interactions reported. However, grapefruit juice may increase systemic exposure to fluticasone furoate via CYP3A4 inhibition; although clinical significance is low, avoid excessive grapefruit consumption. No dietary restrictions necessary.
No known food interactions. No dietary restrictions required.
Insufficient human data; based on animal studies, corticosteroids (fluticasone furoate) and LABA (vilanterol) show no major teratogenicity but may cause fetal growth restriction at high systemic exposures. Avoid in first trimester unless benefit outweighs risk; use lowest effective dose in later trimesters.
No evidence of teratogenicity; topical application with minimal systemic absorption. First trimester: unlikely risk. Second/third trimester: no known fetal risks from maternal use.
No data on drug excretion in human milk; M/P ratio unknown. Corticosteroids and LABAs are expected to be present in low concentrations. Caution if breastfeeding, especially in preterm infants. Consider alternative therapies.
Minimal systemic absorption; unlikely to appear in breast milk. M/P ratio not established. Considered compatible with breastfeeding.
No specific dose adjustments required due to pregnancy-induced pharmacokinetic changes, but use lowest effective dose to maintain asthma control due to potential fetal risk.
No dosage adjustment required; pharmacokinetics unlikely altered due to topical route.
Breo Ellipta (fluticasone furoate/vilanterol) is an ICS/LABA combination indicated for maintenance treatment of COPD and asthma. It is not for acute bronchospasm. The ELLIPTA inhaler is a once-daily, dry powder inhaler; each actuation delivers a fixed dose. Rinse mouth with water after use without swallowing to reduce oral candidiasis. Monitor for pneumonia in COPD patients. In asthma, it is not indicated for patients under 18 years; for COPD, use only in patients with a history of exacerbations. Do not discontinue abruptly.
ALA-SCALP is a topical aminolevulinic acid preparation used for photodynamic therapy of actinic keratoses on the scalp. Must be applied by a healthcare professional. Avoid sun exposure to treated area for 48 hours post-application due to photosensitivity. Do not apply to eyes or mucous membranes. Lesions should be prepped by gentle removal of scales and crusts. Use with a compatible light source (blue light). Burning and stinging during light exposure is common; consider pain management strategies.
Use exactly as prescribed; it is not a rescue inhaler for sudden breathing problems.,Rinse mouth with water after each dose without swallowing to prevent oral thrush.,Do not stop taking this medication without consulting your doctor; stopping can worsen breathing.,Tell your doctor if you have any signs of infection, pneumonia, or worsening breathing.,Store the inhaler at room temperature away from moisture and heat; keep it closed when not in use.
This medication is applied by your doctor to treat precancerous spots on your scalp.,After application, you will need a special light treatment (photodynamic therapy).,Avoid sunlight and bright indoor light on the treated area for 48 hours after the procedure.,You may experience temporary redness, swelling, scaling, or discomfort at the treatment site.,Use sunscreen and protective clothing when going outdoors during the photosensitivity period.,Do not wash the treated area for at least 4 hours after the solution is applied.,Contact your doctor if you experience severe pain, blistering, or signs of infection.
No interactions on record
No interactions on record
Explore head-to-head clinical comparisons of other medications in the same therapeutic classes.
Common clinical questions about BREO ELLIPTA vs ALA-SCALP, answered by our medical review team.
BREO ELLIPTA is a Corticosteroid/Beta-2 Agonist Combination that works by Combination of fluticasone furoate, a corticosteroid that binds to glucocorticoid receptors to inhibit inflammatory gene transcription, and vilanterol, a long-acting beta2-adrenergic agonist that activates adenylate cyclase leading to bronchodilation.. ALA-SCALP is a Topical Corticosteroid that works by ALA-SCALP (aminolevulinic acid) is a photosensitizer precursor that is converted intracellularly to protoporphyrin IX (Pp IX), which accumulates in cells with increased heme synthesis, such as rapidly dividing cells. Upon exposure to blue light (BLU-U®), Pp IX produces reactive oxygen species, leading to cellular damage and apoptosis of targeted cells.. They differ in pharmacokinetic profiles, FDA-approved indications, and side effect profiles.
Potency comparisons between BREO ELLIPTA and ALA-SCALP depend on the specific clinical indication. These are agents from distinct pharmacological classes and are not directly interchangeable by dose. A physician or clinical pharmacist should guide any therapeutic switching decisions.
The standard adult dose of BREO ELLIPTA is: One inhalation (100 mcg fluticasone furoate / 25 mcg vilanterol) once daily via oral inhalation.. The standard adult dose of ALA-SCALP is: Topical application of a 5% solution to the scalp twice daily.. Dosing should always be individualized based on indication, renal and hepatic function, age, and other patient factors.
No direct drug-drug interaction has been formally documented between BREO ELLIPTA and ALA-SCALP in current clinical databases. However, individual patient risk factors including other medications, organ function, and comorbidities should always be evaluated by a qualified healthcare provider.
The maternal-fetal safety profiles differ. BREO ELLIPTA is classified as Category C. Insufficient human data; based on animal studies, corticosteroids (fluticasone furoate) and LABA (vilanterol) show no major teratogenicity but may cause fetal growth restriction at. ALA-SCALP is classified as Category C. No evidence of teratogenicity; topical application with minimal systemic absorption. First trimester: unlikely risk. Second/third trimester: no known fetal risks from maternal use.. Always consult a maternal-fetal medicine specialist before taking either drug during pregnancy or lactation.