A monoclonal antibody cocktail is a mixture of two or more monoclonal antibodies (MAbs) that are designed to work together to achieve a specific goal. Monoclonal antibodies are laboratory-created proteins that are designed to attach to a specific target, such as a virus or a cancer cell. By using a cocktail of different MAbs, scientists can create a treatment that is more effective than using a single MAb.

One example of a monoclonal antibody cocktail is the Keytruda and Opdivo …