Hereditary angioedema (HAE) in summary

What is HAE?

HAE is a rare and life-long, genetic condition that affects somewhere between 1 in 10,000–50,000 people.1–5 It is usually caused by your body not producing enough of, or not properly producing, a blood protein called C1 inhibitor.1–5 This leads to your body producing too much of another protein called bradykinin, which can cause an HAE attack.1–5

What happens during an HAE attack?

During an attack, fluid in the blood vessels begins to leak out into the surrounding area, causing painful and sometimes disfiguring swelling.1,2,5 It most commonly affects the face, feet, hands, stomach, genitals, and sometimes the throat.1–6 Attacks on the throat happen less often but they can be life-threatening, as swelling here can interfere with your breathing.2–4 If you experience an HAE attack affecting your airways, inject SAJAZIR (icatibant) and then go to the nearest hospital emergency room right away.6

How is HAE diagnosed?

Exactly where in the body, how often and how severe is different for everyone and can change over time.1 Because HAE is so rare, it can be difficult to diagnose in the beginning and symptoms are often confused with other conditions, such as allergies.5​

If you’ve been diagnosed with HAE and are receiving SAJAZIR treatment, Cycle Vita is here for you, for life.​

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  1. Maurer M, et al. Allergy. 2018;73(8):1575–1596.
  2. Zuraw BL, et al. J Allergy Clin Immunol Pract. 2013;1(5):458–467.
  3. El-Shanawany T. Hereditary Angioedema. British Society for Immunology. (accessed October 2021).
  4. Ghazi A, Grant JA. Biologics. 2013;7:103–113.
  5. Lumry W, et al. Journal of Infusion Nursing. 2020;43(3):134–145.
  6. SAJAZIR™ (icatibant) Injection. Prescribing Information. Cycle Pharmaceuticals Limited.

Indication and Important Safety Information

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

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

The most common side effects of SAJAZIR 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 SAJAZIR. Tell your healthcare provider if you have any side effects.

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

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

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

For more detailed information, please refer to the Full Prescribing Information.

To report SUSPECTED ADVERSE REACTIONS contact Cycle Pharmaceuticals at 1-800-836-4380, or the FDA at: 1-800-FDA-1088 or