What is the role of hydralazine in the treatment of preeclampsia?

Updated: Nov 29, 2018
  • Author: Kee-Hak Lim, MD; Chief Editor: Ronald M Ramus, MD  more...
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Hydralazine is a direct peripheral arteriolar vasodilator and, in the past, was widely used as the first-line treatment for acute hypertension in pregnancy. [70, 71] This agent has a slow onset of action (10-20 min) and peaks approximately 20 minutes after administration. Hydralazine should be given as an IV bolus at a dose of 5-10 mg, depending on the severity of hypertension, and may be administered every 20 minutes up to a maximum dose of 30 mg.

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