Nilvadipine is primarily used in the treatment of hypertension, helping to lower high blood pressure by relaxing and widening blood vessels. This allows blood to flow more easily, reducing the strain on the cardiovascular system. It is also investigated for its potential benefits in managing certain types of dementia, particularly Alzheimer's disease, due to its ability to improve cerebral blood flow and reduce oxidative stress. Additionally, it may be used in some cases to treat angina pectoris by improving oxygen supply to the heart muscle. Its application is typically in oral form, and it is often prescribed as part of a broader therapeutic regimen under medical supervision.