The most commonly used intravenous drug is nitroprusside. An alternative for patients with renal insufficiency is intravenous fenoldopam. Labetalol is another common alternative, providing easy transition from IV to oral (PO) dosing. Beta-blockade can be accomplished intravenously with esmolol or metoprolol. Hydralazine is reserved for use in pregnant patients, while phentolamine is the drug of choice for a pheochromocytoma crisis. iv sodium nitroprusside should be used with caution as it can cause a rapid uncontrollable drop in blood pressure.<unk>  hypertension is considered an absolute contraindication to the use of the following medications:
Warfarin
Malignant hypertension medical therapy
Chronic hypertension medical therapy
Portal hypertension medical therapy
Coronary artery disease treatment in diabetics
Primary hyperaldosteronism medical therapy
Diabetes with hypertension medical therapy
Eisenmenger’s syndrome medical therapy
Nephrotic syndrome medical therapy