Prescription
Antihypertensive (blood pressure-lowering medicine) — Vasodilator
Hydralazine Hydrochloride
Last reviewed April 2026
Who is this for?
What is this drug?
Hydralazine is a medicine that lowers high blood pressure by relaxing and widening the blood vessels, allowing blood to flow more easily through your body.
What is it used for?
High blood pressure (hypertension)severe high blood pressure emergencieshigh blood pressure during pregnancy (pre-eclampsia and eclampsia)heart failure
Prescription Required
A doctor's prescription is required to obtain this drug legally.