Content-Type: text/shitpost

I forget where I heard this story, but Wikipedia at least supports it, with citations. Minoxidil, which is commonly used to treat hair loss, was originally investigated as an anti-hypertension drug. The drug worked for treating hypertension, but it had an unfortunate side effect. Many of the test subjects grew hair in weird places, like out of the ends of their noses.

“Huh,” said the scientists. “That's no good. But maybe if we apply it topically?”

And that's where we got Rogaine.