andromedotoxin

noun

an·​drom·​e·​do·​tox·​in an-ˌdräm-əd-(ˌ)ō-ˈtäk-sən 

: a toxic compound C₃₁H₅₀O₁₀ found in various plants (as members of the genus Andromeda) of the heath family (Ericaceae) that lowers the blood pressure of animals when taken in small doses