Angizem 30 Mg (Diltiazem) Online USA Angizem 30 Mg (Diltiazem) is a calcium channel blocker, prescribed for high blood pressure and angina pectoris. Angizem 30 Tablet MR is utilized to treat angina (heart-related chest pain), hypertension and a few kinds of unpredictable pulses (arrhythmia). It is known as a calcium channel blocker. It works by loosening up veins to bring down circulatory strain. This assists with diminishing the responsibility of the heart.