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Hyzaar (Losartan Potassium/Hydrochlorothiazide)

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Hyzaar (Losartan Potassium/Hydrochlorothiazide) - 50mg/12.5mg (30 Tablets) Hyzaar (Losartan Potassium/Hydrochlorothiazide) - 50mg/12.5mg (30 Tablets)


Active Ingredient

Losartan Potassium/Hydrochlorothiazide


Merck & Co. (MSD)


New Zealand

Other Names




What is Hyzaar (Losartan Potassium/Hydrochlorothiazide) used for?

Hyzaar (Losartan Potassium/Hydrochlorothiazide) is a combination of two active ingredients which is used to treat heart failure, high blood pressure and to lower the risk of a stroke in patients with certain heart conditions. The active ingredient Losartan is a type of angiotensin receptor blocker, which relaxes blood vessels and eases blood flow. Hydrochlorothiazide is a type of diuretic (water pill) that causes the body to create more urine, ridding the body of excess salt and water in the process.

How should I use Hyzaar (Losartan Potassium/Hydrochlorothiazide)?

Patients who are taking Hyzaar (Losartan Potassium/Hydrochlorothiazide) must follow all instructions provided to them by their physician. This drug is usually taken once per day. As it may cause more frequent urination, you are advised to take it early, and to avoid taking it within 4 hours of going to bed. If you take it too close to bedtime, you may need to get up repeatedly during the night to urinate. Be aware that this drug can affect your potassium levels. Do not take any potassium supplements without first seeking the advice of your physician.

What are the side effects of Hyzaar (Losartan Potassium/Hydrochlorothiazide)?

If your physician has prescribed Hyzaar (Losartan Potassium/Hydrochlorothiazide), you may notice some side effects when taking it, such as:

  • Pain in the stomach
  • Back pain
  • A dry cough
  • Nasal congestion or a sore throat
  • Fatigue and dizziness

Inform your physician immediately if you notice eye pain, changes in vision, decreased urination or any other side effects.

Please Note

This drug can cause serious harm to an unborn baby. Do not take it if you are pregnant. All patients are advised to discuss the use of reliable contraception with their physician, so as to avoid a pregnancy while taking this medication.

Women who are breastfeeding should discuss with their physician whether or not it is advisable to breastfeed while taking this drug.

Strictly follow all instructions provided to you by your physician or pharmacist while using Hyzaar (Losartan Potassium/Hydrochlorothiazide). Optimum and safe dosage can differ based on the patient and the condition being treated.

As this medication may be unsafe for certain patients, it is essential you always inform your physician if you have any allergies, other illnesses, or ongoing health conditions, and if you are taking any other form of medication, supplements, or herbal products.

Immediately seek emergency medical care if you have any allergic or hypersensitive reaction. Common signs of a reaction include hives, swelling, skin rashes, chest pains, as well as trouble breathing or swallowing.

Hyzaar (Losartan Potassium/Hydrochlorothiazide)
Hyzaar (Losartan Potassium/Hydrochlorothiazide)