Aranidipine is primarily used as a calcium channel blocker in the treatment of hypertension. It works by relaxing the blood vessels, which helps to lower blood pressure and improve blood flow. This makes it effective in managing high blood pressure and reducing the risk of cardiovascular events such as strokes and heart attacks. Additionally, it may be used in the management of certain types of angina by improving oxygen supply to the heart muscle. Its vasodilatory effects also make it beneficial in some cases of Raynaud's phenomenon, where it helps to alleviate symptoms by improving circulation in the extremities.