Cinryze is a prescription medication primarily used for the treatment and prevention of angioedema attacks in individuals with hereditary angioedema (HAE). Hereditary angioedema is a rare, genetic disorder characterized by sudden, severe swelling in various parts of the body, including the limbs, face, intestinal tract, and airways, which can be life-threatening if the swelling obstructs the airways. Cinryze works by providing C1 esterase inhibitor, a protein that people with HAE lack or have in insufficient amounts. This protein plays a crucial role in regulating the inflammatory processes in the body and helps to control the swelling and prevent angioedema attacks. Administered through intravenous injection, Cinryze is designed for use in adults and children to manage the symptoms associated with this condition, offering those affected a better quality of life by reducing the frequency and severity of attacks.