What is the brand name for the combination of Hydrochlorothiazide and Losartan Potassium?

Hyzaar is the brand name for the combination of Hydrochlorothiazide and Losartan Potassium. This medication is used primarily to treat high blood pressure, combining the effects of a thiazide diuretic (Hydrochlorothiazide), which helps reduce fluid retention and lower blood pressure, with an angiotensin II receptor blocker (Losartan), which further aids in lowering blood pressure by helping to relax blood vessels. This synergistic effect of the two components leads to improved blood pressure management in patients.

Other options listed are not correct because they either represent different combinations or substances. Maxzide, for example, is a combination of Hydrochlorothiazide and Triamterene, used for hypertension but involves a different mechanism and medication. Dyazide also refers to a combination involving Triamterene and Hydrochlorothiazide. Triamterene, on its own, is a potassium-sparing diuretic, which is distinct from the combination of Hydrochlorothiazide and Losartan Potassium. Therefore, Hyzaar is the only correct answer in this context.