Adjective
cardiotoxic (comparative more cardiotoxic, superlative most cardiotoxic)
chemically damaging to the tissues of the heart
Other than humans, its main predators include the honey badger, meerkat, and the mongoose, all of which are thought to have evolved a resistance or decreased sensitivity to the Cape cobra’s predominately neurotoxic and cardiotoxic venom. Source: Internet
There is some evidence that alcohol consumption is cardiotoxic. Source: Internet