Co-Diovan 80/12.5mg is a prescription medication that combines valsartan (80mg) and hydrochlorothiazide (12.5mg) for treating high blood pressure (hypertension) in adults. Each pack contains 28 film-coated tablets manufactured by Novartis Pharmaceuticals. This combination medication works in two ways: valsartan blocks the action of angiotensin II which causes blood vessels to narrow, while hydrochlorothiazide is a diuretic that helps remove excess water and salt from the body. The tablets should be taken once daily as prescribed by your healthcare provider. The medication comes in a distinctive light blue and white package with clear labeling. Store at room temperature away from moisture and light. This is a prescription-only medication that requires regular monitoring by a healthcare professional.