Cyclamate
Drug / Medication
The second artificial sweetener, discovered in 1937, which was later banned in the U.S. due to bladder cancer in lab rats, though it is now considered safe for humans.
Mentioned in 2 videos
Videos Mentioning Cyclamate

Metabolic Rate, Artificial Sweeteners, Electromyography, and Non-Failure Training (Episode 35)
Stronger By Science
A non-nutritive sweetener banned in the US in 1969 due to evidence of increased bladder cancer in rats, but not banned in the European Union, suggesting differing scientific interpretations.

Aspartame: The Surprisingly Interesting Science and History (Episode 116)
Stronger By Science
The second artificial sweetener, discovered in 1937, which was later banned in the U.S. due to bladder cancer in lab rats, though it is now considered safe for humans.