Meds & supplements › C1 esterase inhibitor
Medicine
RUCONEST is a C1 esterase inhibitor [recombinant] indicated for the treatment of acute attacks in adult and adolescent patients with hereditary angioedema (HAE).
Selected manufacturer label information, organised into consistent sections by Sofidex. Read the full label at DailyMed ↗
RUCONEST is an injectable medicine that is used to treat acute angioedema attacks in adult and adolescent patients with Hereditary Angioedema (HAE). HAE is caused by a shortage of a protein called C1 esterase inhibitor, that is present in your blood and helps control inflammation (swelling) and parts of the immune system. A shortage of C1 esterase inhibitor can lead to repeated attacks of swelling, pain in the abdomen, difficulty breathing and other symptoms. RUCONEST contains C1 esterase inhibitor.
Like all medicines, RUCONEST can cause side effects, although not everybody gets them.
Allergic reactions may occur with RUCONEST. Call your healthcare provider or the emergency department immediately if you have any of the following symptoms after receiving RUCONEST:
In clinical studies, the most severe side effect reported in a person who received RUCONEST was a severe allergic reaction in a subject who was allergic to rabbits.
Other side effects patients experienced during clinical research studies include:
These are not all the possible side effects of RUCONEST.
If any of the side effects get serious, or if you notice any side effects not listed in the leaflet, please inform your healthcare provider or pharmacist. You can also report side effects to the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch or contact Pharming Healthcare Inc. at 1-800-930-5221.
You can ask your healthcare provider for information about RUCONEST that is written for healthcare providers.
General Information about RUCONEST
Do not use RUCONEST for a condition for which it is not prescribed.
If you would like more information, talk to your healthcare provider. You can ask your healthcare provider or pharmacist for information about RUCONEST that was written for healthcare professionals.
For more information go to www.ruconest.com or call 1-800-930-5221.
DOSAGE VERIFICATION
Discuss this section with your healthcare provider to ensure that the correct dose of RUCONEST is administered.
This Patient Package Insert has been approved by the US Food and Drug Administration.
Manufactured by:
Pharming Americas B.V.
Darwinweg 24
2333 CR Leiden
The Netherlands
RUCONEST ® is a registered trademark of Pharming Intellectual Property B.V.
Distributed by:
Pharming Healthcare Inc.
Warren NJ 07059
Product protected by U.S. patent Nos. 7,067,713 and RE43691.
Please see www.ruconest.com for patent information.
US License No. 2079
Revised: APR 2020
You should not use RUCONEST if you have a known or suspected allergy (hypersensitivity) to rabbits or rabbit-derived products.
You should not use RUCONEST if you have experienced life-threatening immediate hypersensitivity reactions, including anaphylaxis, to RUCONEST or to any other C1 esterase inhibitor product.
RUCONEST is not indicated for use in children under the age of 13 years.
Tell your healthcare provider about all of your medical conditions, including if you:
Tell your healthcare provider and pharmacist about all of the medicines you take, including all prescription and non-prescription medicines such as over-the-counter medicines, supplements, or herbal remedies.
RUCONEST will be slowly injected into your vein (intravenous injection). Before injection, the RUCONEST powder must be dissolved using sterile Water for Injection. The dose will be determined based on your weight.
Most of the time a single dose of RUCONEST is enough to treat an attack, but a second dose may be needed.
sofidex [Internet]. Daloreum; c2026. C1 esterase inhibitor; [reviewed 2026 Aug 2; cited 2026 Nov 10]. Available from: https://sofidex.com/patients/medicines/c1-esterase-inhibitor
sofidex. (2026, August 2). C1 esterase inhibitor. Daloreum. Retrieved November 10, 2026, from https://sofidex.com/patients/medicines/c1-esterase-inhibitor
C1 esterase inhibitor. sofidex. Reviewed August 2, 2026. Accessed November 10, 2026. https://sofidex.com/patients/medicines/c1-esterase-inhibitor
The cited date is today’s, because a citation records when you read the page. The reviewed date is when a clinician last checked it.