Key takeaways
Isosorbide dinitrate (Isordil) and digoxin (Lanoxin) are both medications used to treat heart conditions, but they work in different ways and are used for different purposes. Isosorbide dinitrate is a vasodilator that helps relieve chest pain (angina) by relaxing blood vessels, making it easier for your heart to pump blood. It is available in both short-acting and long-acting forms, with the short-acting version available as a generic. Common side effects include headaches and dizziness. On the other hand, digoxin is an antiarrhythmic medication used to treat heart failure and atrial fibrillation (AFib) by making your heart pump more strongly and slowing down its electrical activity. Digoxin is available as a lower-cost generic but requires regular blood tests to monitor for potential toxicity, which can cause serious side effects like abnormal heart rhythms and vision changes. While isosorbide dinitrate can lower blood pressure, digoxin does not typically affect blood pressure, making it suitable for people with lower blood pressure. Both medications require careful adherence to dosing schedules to avoid complications.
