Hydralazine
Direct Arterial Vasodilator- Drug Class
- Direct Arterial Vasodilator
- Mechanism of Action (MOA)
- Direct arteriolar smooth-muscle relaxation → ↓ afterload.
- Clinical Notes
- With isosorbide dinitrate for HFrEF in Black/ACE-intolerant patients; IV for hypertensive emergency in pregnancy. Reflex tachycardia; drug-induced lupus.
- Source
- FDA label
Sources
Reviewed September 2026- FDA label — FDA / DailyMed
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