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Best Interleukin-5 Antagonist for asthma

Top-rated pick: Nucala — pharmaranks score 70/100, the highest of the 2 Interleukin-5 Antagonist drugs used for asthma, ranked by our independent FDA recall-safety score. Compare them with all treatments for asthma or the full Interleukin-5 Antagonist class. Not medical advice — always consult a professional.

Quick answer: Of the 2 interleukin-5 antagonist drugs we rate for asthma, none are yet flagged as generics in our price data, and most are injectable. Our ranking reflects each drug’s FDA recall-safety record — not clinical effectiveness for asthma; the right choice depends on your situation, so confirm it with your prescriber.

Rated against independent regulatory sources·Last updated October 7, 2026·How we rate

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Top interleukin-5 antagonist for asthma: 1. Nucala · 2. Cinqair

Best-rated Interleukin-5 Antagonist for asthma, ranked by pharmaranks score
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170/100—View →
2Not yet rated—View →

Full ranking · 2 drugs

Frequently asked

What is the best interleukin-5 antagonist for asthma?
By our independent recall-safety rating — not an efficacy measure — nucala ranks highest among Interleukin-5 Antagonist drugs used for asthma. Always consult a professional.
Which interleukin-5 antagonist drugs treat asthma?
pharmaranks lists 2 Interleukin-5 Antagonist products used for asthma, per NIH RxClass drug-classification data — each independently rated and ranked above.
How are these ranked?
By our independent score, currently based on FDA regulatory recall-safety data (the methodology blends additional sources as they come online). See the How we rate page.

Where this ranking comes from

Our score is computed from public FDA data — not from opinion, sponsorship or user votes. How we rate.