What side effects may I notice from receiving Arcalyst?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions (skin rash, itching or hives, swelling of the face, lips, or tongue)
-breathing problems
-infection (fever, chills, cough, sore throat, pain or trouble passing urine)
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-pain, redness, bruising, or irritation at site where injected

This list may not describe all possible side effects for Arcalyst. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.