What are side-effects of hyzaar (losartan and hydrocholorthiazide)?

Many possibilities: Hyzaar (losartan and hydrocholorthiazide) is a combination of two medications: hydrochlorothiazide and losartan. It is used to treat high blood pressure. Hctz is a water pill to keep your body from retaining too much salt. Losartan helps keep blood vessels open. Dry cough is a common problem with losartan. There are many possible side effects; you should read carefully all the information that comes with your prescription.