Information about bi preterax tablets to treat high blood pressure. bi preterax 1.25/5 mg contains perindopril and indapamide to control high blood pressure, as it contributes to dilating the vessels and reducing the volume of fluids in the body, which achieves effective control of blood pressure and maintains the patient’s health. Perindopril works to expand the blood vessels, while indapamide acts as a diuretic, which helps to lower blood pressure effectively bi preterax Ingredients It contains two substances, perindopril and indapamide. Perindopril works to dilate blood vessels, while indapamide acts as a diuretic, which helps lower blood pressure effectively.