quinine

Certain toxic compounds, like quinine, taste "bitter" to bees, so the researchers sought to find out whether this sense of taste could help them avoid drinking pesticides.

Carbonated water failed to do that but it did inspire the creation of medicated water, or tonic water infused with quinine from the bark of the cinchona tree.

I used to have a prescription for quinine which would immediately end the cramps.

Haupt told him, "I had a fever in Mexico and had been taking quinine."

In one test, $1.6 million was sent to Thailand, where a lab ended up giving accidental doses of quinine to primate test subjects, killing three of them.