losartan

Brand name(s):

Cozaar

What is the most important information I should know about losartan?

Do not use this medication without telling your doctor if you are pregnant. Losartan may cause injury and even death to the unborn baby if you take it during the second and third trimesters of pregnancy. Use an effective form of birth control. Stop using this medication and tell your doctor right away if you become pregnant during treatment. You should not use this medication if you are allergic to losartan. Avoid drinking alcohol. It can lower your blood pressure and may increase some of the side effects of losartan. Do not use potassium supplements or salt substitutes while you are taking losartan, unless your doctor has told you to.

To be sure this medication is helping your condition, your blood pressure will need to be checked on a regular basis. Do not miss any scheduled appointments.

Keep using this medication even if you feel fine. High blood pressure often has no symptoms.

What is losartan?

Losartan is in a group of drugs called angiotensin II receptor antagonists. Losartan keeps blood vessels from narrowing, which lowers blood pressure and improves blood flow.

Losartan is used to treat high blood pressure (hypertension). It is sometimes given together with other blood pressure medications.

Losartan may also be used for other purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking losartan?

You should not use this medication if you are allergic to losartan.

Before using losartan, tell your doctor if you are allergic to any drugs, or if you have:

If you have any of these conditions, you may need a dose adjustment or special tests to safely take this medication.

FDA pregnancy category D. This medication can cause harm to an unborn baby. Losartan may cause injury and even death to the unborn baby if you take it during the second and third trimesters of pregnancy. Do not use losartan without your doctor's consent if you are pregnant. Use an effective form of birth control. Stop using this medication and tell your doctor right away if you become pregnant during treatment. It is not known whether losartan passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take losartan?

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.

Your doctor may occasionally change your dose to make sure you get the best results from this medication.

You may take losartan with or without food.

To be sure this medication is helping your condition, your blood pressure will need to be checked on a regular basis. Do not miss any scheduled appointments.

It may take 3 to 6 weeks of using this medicine before your blood pressure is under control. For best results, keep using the medication as directed. Talk with your doctor if your symptoms do not improve after 3 weeks of treatment.

Keep using this medication even if you feel fine. High blood pressure often has no symptoms.

Store losartan at room temperature away from moisture, heat, and light.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

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