This leaflet provides important information about using Co-Diovan. You should also speak to your doctor or pharmacist if you would like further information or if you have any concerns or. Co-Diovan is a fixed-dose combination containing both valsartan and hydrochlorothiazide (HCTZ). The combination is indicated for uncontrolled hypertension, which involves using two agents to achieve blood pressure goals. Summary of Product Characteristics for Healthcare Professionals | Novartis Ireland Limited On this page about Co-Diovan 320/25 you will find information relating to side effects, age restrictions, food interactions, whether the medicine is available at a government subsidised price on the pharmaceutical benefits scheme (PBS) as well as other useful information. Co-Diovan contains two active substances called valsartan and hydrochlorothi­azide. Both of these substances help to control high blood pressure (hypertension). Valsartan belongs to a class of medicines known as ‘angiotensin II receptor antagonists’, which help to control high blood pressure. Co-Diovan 160/25 Tablet is used in the treatment of Hypertension (high blood pressure). Find Co-Diovan 160/25 Tablet uses, composition, side-effects, price, substitutes, drug interactions, precautions, warnings, and expert advice. Patient information for CO-DIOVAN 160/25MG TABLETS Including dosage instructions and possible side effects. Diovan HCT® /Co-Diovan® Product Information Active ingredients - valsartan, hydrochlorothiazide Valsartan is used to treat high blood pressure and other heart conditions. It works by helping your blood vessels relax. Common side effects may include headache, dizziness, or feeling tired. Learn about Co Diovan uses, dosage, side effects, food interactions, and more. Get all the details about Co Diovan from MedicinesFAQ.