Behind the Science: Behind Interchangeability Designations for Biosimilars

Interchangeability designations are regulatory labels assigned to certain FDA-approved biosimilars that allow for the product to be substituted for a reference product at the pharmacy level. The idea behind them is that pharmacists can provide patients with biosimilars instead of reference products without seeking approval from a physician, thus making biosimilars more easily accessible to patients, similarly to how generic drugs are. These experts give their opinions on whether they feel that these designations are meaningful and necessary and why.