Diazide 40mg (100 tablets) contains a combination of Hydrochlorothiazide and Spironolactone. This medication is primarily used to treat high blood pressure (hypertension) and edema (fluid retention) associated with conditions such as heart failure or kidney disease. Hydrochlorothiazide is a diuretic that helps the body eliminate excess salt and water, while Spironolactone is a potassium-sparing diuretic that helps prevent potassium loss. The combination helps manage fluid balance and control blood pressure.