KUVAN (sapropterin dihydrochloride) is a prescription medication primarily used to manage and treat phenylketonuria (PKU), a rare genetic disorder characterized by the body's inability to break down the amino acid phenylalanine. High levels of phenylalanine can lead to serious neurological problems, including intellectual disability and seizures. KUVAN works by enhancing the activity of the enzyme responsible for metabolizing phenylalanine, thereby reducing its levels in the blood. It is often used in conjunction with a phenylalanine-restricted diet to effectively manage PKU. KUVAN is available in tablet and powder form for oral administration and is suitable for use in both adults and children, with the specific dosage and treatment regimen determined by a healthcare professional based on the patient's needs and condition.