The alkaloid epibatidine although it can also cause death by lung paralysis .
The alkaloid epibatidine is a painkiller 200 times more potent than morphine is made by some species of poison dart frogs .
The alkaloid epibatidine , a painkiller 200 times more potent than morphine is made by some species of poison dart frogs , although it can also cause death by lung paralysis .