Management Options for Adding to Hydralazine for Blood Pressure Control

First-Line Options to Add to Hydralazine

The American College of Cardiology recommends adding a beta-blocker, such as metoprolol, carvedilol, or labetalol, to hydralazine to control blood pressure and reflex tachycardia in patients with persistent hypertension 1
The American Heart Association suggests that thiazide or thiazide-like diuretics, such as chlorthalidone or indapamide, can be added to hydralazine if not already part of the regimen, to help counteract fluid retention 2, 3

The American College of Cardiology recommends adding a calcium channel blocker, such as amlodipine, to hydralazine if beta-blockers are contraindicated, to provide additional vasodilation 1, 4
The American Heart Association suggests that mineralocorticoid receptor antagonists, such as spironolactone or eplerenone, can be added to hydralazine in patients with resistant hypertension, after optimizing the three-drug regimen of RAS blocker, calcium channel blocker, and diuretic 2, 3

The American Heart Association recommends adding isosorbide dinitrate to hydralazine in patients with heart failure, particularly in Black patients, as this combination has been shown to improve outcomes in heart failure patients, with a Class I (Level of Evidence A) recommendation 5
The American Heart Association suggests a stepwise approach for patients with resistant hypertension, including ensuring optimal dosing of current medications, substituting a thiazide-like diuretic, adding a mineralocorticoid receptor antagonist, and adding a beta-blocker if heart rate is ≥70 bpm 2, 3

The American College of Cardiology recommends monitoring for hypotension when adding a second agent to hydralazine, especially with beta-blockers, and watching for signs of fluid retention 1
The American Heart Association suggests avoiding abrupt discontinuation of beta-blockers once started, and avoiding non-dihydropyridine calcium channel blockers in patients with heart failure 1, 5