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C1 Esterase Inhibitor

What is Haegarda used for?

This medication is used to help prevent swelling and painful attacks caused by a certain inherited disease (hereditary angioedema-HAE). Most people with this disease have too little of a certain substance produced by your body (C1-esterase inhibitor). Some people with this disease have normal amounts of the substance, but it doesn't work right. Anxiety, stress, illness, or surgery may trigger attacks in some people. Symptoms such as rapid swelling of the hands, feet, limbs, face, tongue, or throat can occur. Swelling of the belly may cause symptoms such as severe pain, nausea, vomiting, or diarrhea. This medication works by increasing the amount of C1-esterase inhibitor in your body. This medication should not be used to treat sudden swelling attacks caused by HAE. Ask your doctor ahead of time what to do if you have a sudden attack.


C1 Esterase Inhibitor


Hereditary Angioedema
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Haegarda Frequently Asked Questions

Read the Patient Information Leaflet and Instructions for Use if available from your pharmacist before you start using this medication and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

If you are using this medication at home, learn all preparation and usage instructions from your health care professional and the product package. If the medication and the solution used to mix it have been refrigerated, allow both to come to room temperature before mixing. Do not warm up this medication any other way such as by heating in the microwave or placing in hot water. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.

Inject this medication under the skin on your abdomen or another site as directed by your doctor, usually every 3 or 4 days.

Before injecting each dose, clean the injection site with rubbing alcohol. Change the injection site each time to lessen injury under the skin. Do not inject into areas where the skin is itchy, swollen, painful, bruised, or red. Avoid injecting under skin where you have scars or stretch marks.

The dosage is based on your medical condition, body weight, and response to treatment.

Use this medication regularly to get the most benefit from it.

Tell your doctor if your condition does not get better or if it gets worse.

IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

Haegarda Dosage and Form Information

2000 Unit
3000 Unit