A biologic is a type of medication made from living organisms or their components. These drugs are often used to treat various diseases, including autoimmune disorders and certain types of cancer. Unlike traditional medications, which are usually chemically synthesized, biologics are complex and can include proteins, sugars, or nucleic acids. Biologics work by targeting specific pathways in the body to modify the immune response or other biological processes. Examples of biologics include monoclonal antibodies, vaccines, and insulin. Due to their complexity, biologics often require special storage and handling compared to conventional drugs.