Learn everything you need to know about Cilnidipine-pronunciation, uses , dosage guidelines, indications, and when to take or avoid it. Get up-to-date information on side effects, precautions,... What is the use of Cilnidipine? Cilnidipine is a medicine used to treat high blood pressure . It belongs to a group of medicines which block the calcium channels in the blood vessel. It works by relaxing the blood vessels in patients with high blood pressure. Cilnidipine 5mg Tablet is a medicine used to treat high blood pressure (hypertension) . It belongs to a class of medicines known as calcium channel blockers, which help to lower blood pressure. Uses of Cilnidipine Cilnidipine is an antihypertensive that reduces blood pressure. It is used in the treatment of hypertension (high blood pressure) and for reducing the risk of cardiovascular diseases like heart attacks and strokes.