Which statement correctly describes biologics?

Which statement correctly describes biologics?

• A. Defined by the FDA as chemical drugs only
• B. Not regulated by the FDA
• C. Over-the-counter supplements
• D. Defined by Section 351 of the Public Health Service Act; Substances derived from living material

Answer: (D)

Biologics are defined by Section 351 of the Public Health Service Act and are substances derived from living material. This living-origin definition explains why they’re regulated differently from chemical drugs: their production, structure, and interactions are often more complex and variable, requiring specialized FDA oversight through the biologics licensing process. They are not simply over-the-counter supplements, nor are they defined as chemical drugs; vaccines, monoclonal antibodies, and gene therapies all fall under this living-material category and must obtain a biologics license before they can be marketed.

Biologics are defined by Section 351 of the Public Health Service Act and are substances derived from living material. This living-origin definition explains why they’re regulated differently from chemical drugs: their production, structure, and interactions are often more complex and variable, requiring specialized FDA oversight through the biologics licensing process. They are not simply over-the-counter supplements, nor are they defined as chemical drugs; vaccines, monoclonal antibodies, and gene therapies all fall under this living-material category and must obtain a biologics license before they can be marketed.