What is Angizem CD 120? Angizem CD 120 is a controlled-release (CD) formulation of Diltiazem Hydrochloride, a calcium channel blocker.It is commonly used for: High blood pressure (hypertension) Chronic stable angina (chest pain) Certain heart rhythm disorders (e.g., supraventricular tachycardia) The “CD” form releases the medicine slowly over 24 hours. Manufacturer Angizem CD 120 is …