 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  inherited disorders called cryopyrin-associated periodic syndromes (CAPS), including familial cold autoinflammatory syndrome and Muckle-Wells syndrome. Rilonacept works by blocking a certain natural protein in your body (interleukin-1) that may worsen the symptoms of CAPS. Rilonacept does not cure CAPS, but it can help lessen the symptoms, including rash, joint pain, fever, and tiredness.This medication is also used to treat a condition of a lack of the natural protein interleukin-1 receptor antagonist (Deficiency of Interleukin-1 Receptor Antagonist-DIRA).Rilonacept is also used to treat a certain type heart disease (recurrent pericarditis). This medication reduces the risk of the heart disease from coming back. How to use Rilonacept Solution, Reconstituted (Recon Soln) Read the Patient Information Leaflet if available from your pharmacist before you start using rilonacept and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Inject this medication under the skin as directed by your doctor, usually once weekly. The dosage is based on your age, weight, </s>