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Fasenra

Fasenra Dosage

Ally Tsai, PharmDCydnee Ng, PharmD
Reviewed by Ally Tsai, PharmD, Cydnee Ng, PharmD
Last reviewed on August 20, 2025

The average cost for 1 autoinjector of 30mg/ml of Fasenra is $6,440.49 with a free GoodRx coupon.

autoinjectorAutoinjector

Dosage

Quantity

Price as low as

Price per unit

30mg/ml

1 autoinjector

$6,440.49

$6,440.49

Typical dosage for Fasenra

  • Severe eosinophilic asthma

    • People 12 years of age and older: The typical starting dose is 30 mg injected under the skin once every 4 weeks for the first 3 months. After that, the typical maintenance dose is 30 mg injected under the skin once every 8 weeks.
    • Children 6 to 11 years of age
      • Weigh 77 lbs or more: The typical starting dose is 30 mg injected under the skin once every 4 weeks for the first 3 months. After that, the typical maintenance dose is 30 mg injected under the skin once every 8 weeks.
      • Weigh less than 77 lbs: The typical starting dose is 10 mg injected under the skin once every 4 weeks for the first 3 months. After that, the typical maintenance dose is 10 mg injected under the skin once every 8 weeks.
  • Eosinophilic granulomatosis with polyangiitis (EGPA)

    • Adults only: The recommended dose is 30 mg injected under the skin once every 4 weeks.
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