Losartan is used to treat high blood pressure (hypertension). losartan potassium works by blocking the action of a substance in the body that causes blood vessels to tighten. As a result, losartan and hydrochlorothiazide relaxes blood vessels. cozaar losartan works by blocking the action of a substance in the body that causes blood vessels to tighten. As a result, losartan side effects relaxes blood vessels. This lowers blood pressure.

hyzaar losartan and hydrochlorothiazide drug information is available only with your doctor's prescription, in the following dosage form: Tablets. Tell your doctor if you have ever had any unusual or allergic reaction to losartan potassium and hydrochlorothiazide. Use of losartan potassium tablet during pregnancy. It is not known whether Losartan passes into breast milk. However, losartan potassium passes into the milk of lactating rats.

When you are taking losartan and hydrochlorothiazide, it is especially important that your health care professional know if you are taking any of the following: In addition, some diuretics make the increase in potassium in the blood caused by cozaar losartan even greater. The presence of other medical problems may affect the use of losartan side effects. The dose of losartan potassium tablet will be different for different patients. The following information includes only the average doses of hyzaar losartan and hydrochlorothiazide drug information. losartan potassium and hydrochlorothiazide may cause birth defects or other problems in the baby if taken during pregnancy.