Tiodazosin is primarily used in the treatment of hypertension and benign prostatic hyperplasia (BPH). It functions as an alpha-1 adrenergic receptor antagonist, which helps relax the muscles in the blood vessels and the prostate gland, thereby improving blood flow and reducing blood pressure. This makes it effective in managing high blood pressure and alleviating symptoms associated with an enlarged prostate, such as difficulty in urination. Additionally, it may be prescribed in certain cases to improve urinary flow and reduce the need for surgical intervention in patients with BPH. Its role in cardiovascular health is significant, as it aids in maintaining stable blood pressure levels and preventing complications related to hypertension.