Bortezomib is pronounced bore-tez-oh-mib. It is a type of biological therapy called a proteasome inhibitor. Proteasomes are in all cells. They help to break down proteins that the cell doesn’t need. Bortezomib blocks the proteasomes so that proteins build up in the cell. The cell then dies.
Bortezomib is also called Velcade. It is a treatment for myeloma.