cardiotoxic
/kɑrdiɒˈtɒksɪk/Definitions
1. adjective
Causing harm to the heart or capable of damaging the heart; toxic to the heart or causing cardiac damage.
“The cardiotoxic effects of the medication were a major concern for the researchers.”
2. noun
A substance or agent that is cardiotoxic.
“The cardiotoxic chemicals in the industrial waste were a major environmental concern.”