Which of the following is an example of a biologic?

• A. Ibuprofen
• B. Vaccine
• C. Calcium supplement
• D. Antibiotic

Answer: (B)

Biologics are medicines made from living systems or containing components derived from living organisms, and they’re typically large, complex molecules rather than simple chemicals. Vaccines fit this category because they are produced using living cells or organisms and contain antigens or genetic material designed to provoke an immune response. The other options are not biologics: ibuprofen is a small-molecule drug synthesized chemically; a calcium supplement is a mineral product; antibiotics are usually small-molecule drugs produced by microbes or through chemical synthesis, not biologic products.