Key takeaways
Hydralazine (generic only) and Nitroglycerin (Nitrostat) are both medications used to manage heart-related conditions, but they work differently and are used for different purposes. Hydralazine is a vasodilator that helps lower blood pressure by relaxing blood vessels. It's typically taken multiple times a day and is often used when other blood pressure medications aren't effective. Common side effects include headache, stomach upset, and a fast heart rate. On the other hand, Nitroglycerin is a nitrate used to prevent and treat angina (chest pain) by increasing blood flow to the heart. It works quickly, within 1 to 3 minutes, and is taken as a tablet placed under the tongue or against the cheek. Nitroglycerin can cause low blood pressure and headaches, and you should avoid alcohol while taking it. Unlike Hydralazine, Nitroglycerin is available in both brand-name and generic forms.
