hy·​dral·​azine hī-ˈdra-lə-ˌzēn How to pronounce hydralazine (audio)
: a vasodilator C8H8N4 used in the form of its hydrochloride to treat hypertension

Examples of hydralazine in a Sentence

Recent Examples on the Web What are your thoughts regarding the hydralazine? Dr. Keith Roach, oregonlive, 1 July 2022 The primary recommended drugs – considered safe for pregnant and recently delivered moms – are both delivered by IV: labetalol and hydralazine. Cara Kelly, USA TODAY, 27 July 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hydralazine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


hydr- + phthalic (acid) + azine

First Known Use

1952, in the meaning defined above

Time Traveler
The first known use of hydralazine was in 1952

Dictionary Entries Near hydralazine

Cite this Entry

“Hydralazine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydralazine. Accessed 13 Jun. 2024.

Medical Definition


hy·​dral·​azine hī-ˈdral-ə-ˌzēn How to pronounce hydralazine (audio)
: an antihypertensive drug that is used in the form of its hydrochloride C8H8N4·HCl and produces peripheral arteriolar dilation by relaxing vascular smooth muscle

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