Which historical driver led to stricter drug regulation in the US?

• A. The rise of wildlife conservation
• B. The invention of penicillin
• C. Untested products led to human deaths
• D. The Great Depression policies

Answer: (C)

Public safety concerns from harm caused by untested medicines drove tighter drug regulation. When products were sold with little or no testing, some caused severe illness or death, prompting public outrage and congressional action. The most notable milestone is the 1938 Food, Drug, and Cosmetic Act, which followed the 1937 Elixir Sulfanilamide tragedy where a toxic solvent killed many people. This disaster showed the need for proof of safety before a drug could be marketed and gave the FDA authority over testing, labeling, and marketing practices. Earlier, the 1906 Pure Food and Drug Act addressed adulteration and misbranding, but it didn’t require safety testing to the same extent. The other options don’t reflect the driver behind stricter regulation—wildlife conservation, the mere invention of penicillin, or Depression-era economic reforms—whereas dangerous, untested products causing harm did.