The side effects you describe like cardiac arrest are from n-ethylpentylone not n-ethylpentedrone. There are no cases of cardiac arrest with n ethylpentedrone (there is a case about acute multi organ dysfunction). And n-ethylpentedrone is not illegal at the moment and the dea has only made a report on n-ethylpentylone which is schedule 1 at the moment.
Please do some research before making claims when you are citing information about a completely different substance
The side effects you describe like cardiac arrest are from n-ethylpentylone not n-ethylpentedrone. There are no cases of cardiac arrest with n ethylpentedrone (there is a case about acute multi organ dysfunction). And n-ethylpentedrone is not illegal at the moment and the dea has only made a report on n-ethylpentylone which is schedule 1 at the moment.
Please do some research before making claims when you are citing information about a completely different substance