A decade after the first biosimilar approval, these medications are still gaining approval from the U.S. Food and Drug Administration (FDA) and entering the market each year. Biosimilars are the most cost-efficient type of biologic medication, and they are safe and effective for treating many illnesses. Not only do these drugs have the potential to offer significant savings to the health care system, but they also increase patient access to medications and specialty treatments that their insurance may not have previously covered.