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hydralazine

American  
[hahy-dral-uh-zeen] / haɪˈdræl əˌzin /

noun

Pharmacology.
  1. a white crystalline powder, C 8 H 8 N 4 , that dilates blood vessels and is used in the treatment of hypertension.


Etymology

Origin of hydralazine

First recorded in 1950–55; hydr- 2 + (phth)al(ic) + azine

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Unlike chemotherapy, which aims to kill all cells outright, hydralazine disrupted that oxygen-sensing loop, triggering cellular "senescence," or a dormant, non-dividing state in glioblastoma cells, effectively pausing growth without triggering further inflammation or resistance.

From Science Daily • Dec. 2, 2025

"Understanding how hydralazine works at the molecular level offers a path toward safer, more selective treatments for pregnancy-related hypertension -- potentially improving outcomes for patients who are at greatest risk."

From Science Daily • Dec. 2, 2025

Over the last 70 years, hydralazine has been an indispensable tool in medicine -- a front-line defense against life-threatening high blood pressure, especially during pregnancy.

From Science Daily • Dec. 2, 2025

They gave reserpine first, then nerve-blocking drugs, hydralazine and veratrum compounds, finally phenoxybenzamine.

From Time Magazine Archive

Others, like hydralazine, are relaxers that seem to act directly on the muscle walls of the blood vessels, causing them to dilate and thus decrease pressure.

From Time Magazine Archive