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What are IL-5 antagonists?

Donna Hill Howes, RN
Family Practitioner

IL-5 (interleukin-5) antagonists are drugs that limit the production of eosinophils in the body. Eosinophils are white blood cells that trigger inflammation and asthma symptoms. IL-5 antagonists include mepolizumab (Nucala) and reslizumab (Cinqair). Mepolizumab is given once every 4 weeks by injection. Reslizumab is given once every 4 weeks by intravenous infusion.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.