• Prescribing Information
  • Formularios En Español
  • For Healthcare Professionals
  • Other Treatment Options
  • Important Safety Information
  • Prescribing Information
FIRAZYR® (icatibant injection) logo.
FIRAZYR® (icatibant injection) logo.
  • Understanding HAE
    • What Is HAE?
    • HAE Symptoms
    • Causes of HAE
    • HAE Attacks
    • HAE Diagnosis and Treatment
  • About FIRAZYR
    • Why FIRAZYR?
    • How to Use FIRAZYR
    • When to Use FIRAZYR
    • How FIRAZYR Works
    • Potential Side Effects of FIRAZYR
    • FIRAZYR FAQ
  • Takeda Patient Support
    • Getting Started With Takeda Patient Support
    • Takeda Patient Support Co-Pay Assistance Program
    • Injection Supplies
  • FIRAZYR Resources
    • Materials for Download
    • Takeda's commitment to FIRAZYR
  • Sign Up
  • Understanding HAE
    • Understanding HAE Overview
    • What Is HAE?
    • HAE Symptoms
    • Causes of HAE
    • HAE Attacks
    • HAE Diagnosis and Treatment
  • About FIRAZYR
    • About FIRAZYR Overview
    • Why FIRAZYR?
    • How to Use FIRAZYR
    • When to Use FIRAZYR
    • How FIRAZYR Works
    • Potential Side Effects of FIRAZYR
    • FIRAZYR FAQ
  • Takeda Patient Support
    • Takeda Patient Support Overview
    • Getting Started With Takeda Patient Support
    • Takeda Patient Support Co-Pay Assistance Program
    • Injection Supplies
  • FIRAZYR Resources
    • FIRAZYR Resources Overview
    • Materials for Download
    • Takeda's commitment to FIRAZYR
  • Sign Up

Other Treatment Options

  • TAKHZYRO®(lanadelumab-flyo) injection
  • Firazyr®(icatibant injection)
  • cinryze®(C1 esterase inhibitor [human])
FIRAZYR® (icatibant injection) logo.
  • Understanding HAE
    • What Is HAE?
    • HAE Symptoms
    • Causes of HAE
    • HAE Attacks
    • HAE Diagnosis and Treatment
  • About FIRAZYR
    • Why FIRAZYR?
    • How to Use FIRAZYR
    • When to Use FIRAZYR
    • How FIRAZYR Works
    • Potential Side Effects of FIRAZYR
    • FIRAZYR FAQ
  • Takeda Patient Support
    • Getting Started With Takeda Patient Support
    • Takeda Patient Support Co-Pay Assistance Program
    • Injection Supplies
  • FIRAZYR Resources
    • Materials for Download
    • Takeda's commitment to FIRAZYR
  • Sign Up
  • Understanding HAE
    • Understanding HAE Overview
    • What Is HAE?
    • HAE Symptoms
    • Causes of HAE
    • HAE Attacks
    • HAE Diagnosis and Treatment
  • About FIRAZYR
    • About FIRAZYR Overview
    • Why FIRAZYR?
    • How to Use FIRAZYR
    • When to Use FIRAZYR
    • How FIRAZYR Works
    • Potential Side Effects of FIRAZYR
    • FIRAZYR FAQ
  • Takeda Patient Support
    • Takeda Patient Support Overview
    • Getting Started With Takeda Patient Support
    • Takeda Patient Support Co-Pay Assistance Program
    • Injection Supplies
  • FIRAZYR Resources
    • FIRAZYR Resources Overview
    • Materials for Download
    • Takeda's commitment to FIRAZYR
  • Sign Up
  • Formularios en Español
  • For Healthcare Professionals
  • Other Treatment Options
    • Main Menu
    • Other Treatment Options
    • TAKHZYRO®(lanadelumab-flyo) injection
    • Firazyr®(icatibant injection)
    • cinryze®(C1 esterase inhibitor [human])

Site Map

  • Home
  • Understanding HAE
    • What is HAE?
    • HAE Symptoms
    • HAE Causes
    • HAE Attacks
    • HAE Diagnosis and Treatment
  • About FIRAZYR
    • Why FIRAZYR?
    • How to use FIRAZYR
    • When to use FIRAZYR
    • How FIRAZYR Works
    • Potential Side Effects of FIRAZYR
    • FIRAZYR FAQ
  • Takeda Patient Support
    • Getting Started With Takeda Patient Support
    • Takeda Patient Support Co-Pay Assistance Program
    • Injection Supplies
  • FIRAZYR Resources
    • Materials for Download
    • Takeda's Commitment to FIRAZYR
  • Sign Up

Important Safety Information + Expand× Close

Important Safety Information +Important Safety Information ×Important Safety Information

Laryngeal attacks can become life threatening. If you have an HAE attack of the throat (laryngeal attack), inject FIRAZYR and then go to the nearest hospital emergency room right away.

The most common side effects of FIRAZYR include:

  • redness, bruising, swelling, warmth, burning, itching, irritation, hives, numbness, pressure, or pain at the injection site
  • fever
  • too much of an enzyme called transaminase in your blood
  • dizziness
  • nausea
  • headache
  • rash

These are not all of the possible side effects of FIRAZYR. Tell your healthcare provider if you have any side effect that bothers you or that does not go away. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

Tell your healthcare provider if you have any other medical conditions, if you are breastfeeding or plan to breastfeed, or if you are pregnant or planning to become pregnant. FIRAZYR has not been evaluated in pregnant or nursing women. You and your healthcare provider will decide if FIRAZYR is right for you.

If your symptoms continue or come back, you may repeat your FIRAZYR injection at least 6 hours apart. Do not use more than 3 doses of FIRAZYR in a 24-hour period.

Tiredness, drowsiness, and dizziness have been reported following the use of FIRAZYR. If this occurs, do not drive a car, use machinery, or do anything that needs you to be alert.

Please see the full Prescribing Information, including Patient Information.

Indication+ Expand× Close

Indication +Indication ×Indication

FIRAZYR is a medicine used to treat acute attacks of hereditary angioedema (HAE) in adults 18 years of age and older.

Takeda logo.
  • For US Audiences
  • Takeda
  • Privacy Notice
  • Legal Notice
  • Contact Us
  • Site Map
  • Unsubscribe

This site is intended for US residents and governed by US laws and government regulations. Please see our online Privacy Policy for more information. ©2024 Takeda Pharmaceuticals U.S.A., Inc., 500 Kendall Street, Cambridge, MA 02142. 1-877-TAKEDA-7 (1-877-825-3327). All rights reserved. TAKEDA®, the TAKEDA Logo®, and the TAKEDA Patient Support Logo™ are registered trademarks of Takeda Pharmaceutical Company Limited. FIRAZYR® and the FIRAZYR Logo® are registered trademarks of Shire Orphan Therapies GmbH. US-ICA-0242v2.0 10/24

Are You a Healthcare Professional?

The information in this section of FIRAZYR.com is intended for US healthcare professionals only.

No Yes »