Trelegy Ellipta vs Nucala

A side-by-side look at two respiratory medications advertised on TV. Informational only — not medical advice.

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Information reviewed July 24, 2026

US Trelegy ElliptaUS Nucala
Generic namefluticasone/umeclidinium/vilanterolmepolizumab
Drug classInhaled Corticosteroid + LAMA + LABAIL-5 Antagonist (Biologic)
TreatsCOPD, asthmaSevere eosinophilic asthma, COPD, nasal polyps
CategoryRespiratoryRespiratory
ManufacturerGSKGSK
Year approved20172015
FDA warningNo boxed warningNo boxed warning
Est. TV ad spend$200M$75M
Common side effectsThrush, Respiratory infections, Headache, CoughHeadache, Injection site reactions, Back pain, Fatigue

Frequently asked questions

Is Trelegy Ellipta or Nucala better?

Neither is universally "better." Trelegy Ellipta (fluticasone/umeclidinium/vilanterol) and Nucala (mepolizumab) are both used for respiratory, but the right choice depends on your medical history, insurance and your doctor's guidance. This comparison is informational only.

What's the difference between Trelegy Ellipta and Nucala?

Trelegy Ellipta is a Inhaled Corticosteroid + LAMA + LABA made by GSK, while Nucala is a IL-5 Antagonist (Biologic) made by GSK. See the table above for a side-by-side breakdown.

Which one spends more on TV ads?

Trelegy Ellipta has the larger estimated TV advertising budget of the two.

TVPills

A reference tool to help identify prescription medications and supplements seen in television advertising. This is not medical advice. Always consult a healthcare professional.

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