Nifenalol is primarily used in the field of medicine as a beta-blocker. It is effective in managing cardiovascular conditions such as hypertension, angina, and arrhythmias by blocking the effects of adrenaline on the heart and blood vessels. This helps to reduce heart rate, lower blood pressure, and decrease the heart's workload, thereby improving overall cardiac function. Additionally, Nifenalol may be utilized in the treatment of anxiety and migraine prevention due to its ability to moderate the body's stress response. Its application is crucial in enhancing patient quality of life by mitigating symptoms and preventing complications associated with heart-related disorders.