OSVAREN is a medication primarily designed to manage and treat conditions related to abnormal phosphate levels in the body, often used in patients with chronic kidney disease (CKD) who are on dialysis. It functions as a phosphate binder, which means it works by binding to phosphate in the digestive tract, reducing the amount absorbed into the bloodstream. This helps maintain a healthier balance of phosphate levels, which is crucial for patients with CKD, as high phosphate levels can lead to serious health issues, including bone and cardiovascular problems. OSVAREN is typically administered orally and must be taken as prescribed by a healthcare professional to ensure its effectiveness and to minimize potential side effects.