How the cancer-fighting properties of aspirin and antiparasitic drugs were discovered hiding inside data collected for something else entirely

The greatest discoveries in the history of cancer pharmacology were not made by oncologists looking for cancer drugs. They were made by epidemiologists examining the records of people taking drugs for something else entirely — and noticing that they were getting cancer less often than they should.

https://fenbendazole.substack.com/p/aspirin-and-antiparasitics-the-anticancer?