Pressor and Vasopressor

Pressor noun - Any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure.

Vasopressor and pressor are semantically related. In some cases you can use "Vasopressor" instead a noun "Pressor".

Vasopressor noun - Any agent that produces vasoconstriction and a rise in blood pressure (usually understood as increased arterial pressure).

Pressor and vasopressor are semantically related. You can use "Pressor" instead a noun "Vasopressor".