When it comes to biosimilars, there seem to be far more questions than answers, specifically when it comes to interchangeability. Now that the FDA has granted three biosimilar products “interchangeable” status—with more to come, surely—how will this development affect the biosimilars market? What do pharma manufacturers, payers and physicians need to know about this designation? And, crucially, how might interchangeability affect biosimilar uptake in 2023 and beyond?