Newday Tab 5/80mg is a medication used to treat hypertension (high blood pressure). Each tablet contains 5 milligrams of amlodipine besylate and 80 milligrams of valsartan, two active ingredients that work together to relax blood vessels, allowing blood to flow more easily. These components work as a calcium channel blocker that prevents calcium from entering the blood vessel walls and blocks the effects of angiotensin II, a substance that narrows blood vessels. By combining these two medications, these tablets help to lower blood pressure, reducing the risk of heart attack, stroke, and other cardiovascular complications.