For which condition is isosorbide dinitrate prescribed?

Isosorbide dinitrate is primarily prescribed for the management of angina pectoris, which is characterized by chest pain or discomfort due to reduced blood flow to the heart muscle. This medication is a nitrate that works by relaxing blood vessels, which increases the supply of blood and oxygen to the heart while reducing its workload. By dilating the veins, isosorbide dinitrate decreases the amount of blood returning to the heart, ultimately leading to a decrease in the heart's oxygen demand. This action makes it particularly effective in preventing and treating episodes of angina.

While isosorbide dinitrate can also have some applications in other conditions, such as congestive heart failure, it is most recognized and commonly utilized for angina management. The other options, such as hypertension and atrial fibrillation, do not primarily rely on isosorbide dinitrate for treatment, as there are more appropriate medications specifically targeted for those conditions.