On February 14, 2024, the U.S. Food and Drug Administration (FDA) approved Aurlumyn™ (iloprost) injection for the treatment of severe frostbite in adults. Severe frostbite is a serious condition caused by exposure to freezing temperatures in which the skin and underlying tissue are frozen and blood flow to the area is stopped. The most common areas affected are the fingers, toes, nose and ears. In severe cases, it can require amputation of the damaged tissue. Aurlumyn™ is the first medication available to treat severe frostbite and reduce the risk of amputation of fingers and toes. Iloprost, the active ingredient in Aurlumyn™, is a vasodilator that opens blood vessels and prevents clotting that was first approved to treat pulmonary arterial hypertension in 2004. Treatment with this medication is believed to reduce the risk of amputation from frostbite by restoring blood flow, leading to less tissue damage. In a clinical trial of individuals with severe frostbite, groups treated with Aurlumyn™ had a significantly lower percentage of patients who required amputation compared to groups not treated with the medication. Some common side effects of Aurlumyn™ include headache, flushing, fast heart rate and low blood pressure. Aurlumyn™ received Priority Review and Orphan Drug designations from the FDA.