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What is Tezspire?

Tezspire works upstream of the other asthma biologics by blocking thymic stromal lymphopoietin (TSLP) — a key initiator of Type 2 inflammation. Its broad mechanism means it works in severe asthma regardless of phenotype: patients with low eosinophils and low IgE who would not be candidates for the other biologics may still benefit.

What it treats

Tezspire is FDA-approved for the following indications:

  • Severe asthma in patients ≥12 years (broad eligibility regardless of phenotype)

How it is administered

Tezspire is administered subcutaneously every four weeks, available as both an in-office injection and a self-administered option.

Patient assistance & support

The manufacturer offers a patient support program — Tezspire Together — that can help with insurance navigation, copay assistance for eligible patients, nursing support, and ongoing education. More information is available at https://www.tezspire.com/savings-and-support.html.

Coordination at Optimed Immunology

Treatment with Tezspire is initiated and monitored by Dr. McNeil. Prior authorizations are handled in-house — patients are not asked to navigate insurance approvals on their own. This is a subcutaneous self-administered medication. After prior authorization, the prescription is sent to a specialty pharmacy that ships the medication directly to the patient. A manufacturer-sponsored nurse or office-based training visit is typically arranged for the first dose so patients are confident with self-administration before continuing at home.

A note on age: The FDA indications above may include pediatric or adolescent age groups. Optimed Immunology's clinical practice is focused on adults. If you are seeking care for a minor, please contact the office and we can advise on referral options.

Important safety note: This page is not a substitute for the FDA prescribing information. Risks, contraindications, drug interactions, and required monitoring vary by patient. The official manufacturer website (https://www.tezspire.com) provides the most current full prescribing and safety information. Treatment decisions and monitoring are individualized — please discuss with Dr. McNeil whether Tezspire is appropriate for your situation.

Medically reviewed

Donald L. McNeil, MD · Board Certified in Allergy & Immunology and Internal Medicine

Last reviewed: November 2025 · Sources: FDA prescribing information · manufacturer label · AAAAI · ACAAI · relevant clinical guidelines

This page is provided for educational purposes only and is not medical advice. If you have an emergency, call 911.

Have questions about Tezspire?

Treatment selection is a shared decision. Schedule a consultation with Dr. McNeil to discuss whether Tezspire is appropriate for you.