Biosimilar insulins: Narrative review of the regulatory framework and registration studies.

Summary: Have you ever wondered why cheaper "copycat" insulins aren't used more often? Even though they can save money, many doctors and patients worry they aren't as safe or effective as the original name-brand insulins. Because insulin is made from living cells, making a perfect copy is impossible. But don't worry! Health experts in the US and Europe have strict rules to test these new insulins. They check how the insulin works in cells and in human blood tests. The good news? The tests prove these "biosimilar" insulins work just as well and are just as safe as the originals. You can use them without any fear!