Cardizem is an effective oral medication available in tablet form, designed to help manage high blood pressure, alleviate angina (chest pain), and treat specific types of heart arrhythmias. The active ingredient in Cardizem is diltiazem, a well-researched and trusted component for cardiovascular health. Manufactured by leading pharmaceutical companies, Cardizem is presented under several alternative brand names globally, including Eldizem, Dilzem, Channel, Dilcontin, and Deltazem.