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Home Knowledge Center Wellness Library losartan

losartan

Pronunciation: loe SAR tan

Brand: Cozaar

Cozaar

slide 1 of 33, Cozaar,

25 mg, oval, white, imprinted with 951

Image of Cozaar
slide 1 of 33

Cozaar

slide 2 of 33, Cozaar,

50 mg, oval, white, imprinted with 952

Image of Cozaar
slide 2 of 33

Cozaar

slide 3 of 33, Cozaar,

100 mg, egg, white, imprinted with 960

Image of Cozaar
slide 3 of 33

Losartan Potassium

slide 4 of 33, Losartan Potassium,

25 mg, oblong, green, imprinted with 93, 7364

Image of Losartan Potassium
slide 4 of 33

Losartan Potassium

slide 5 of 33, Losartan Potassium,

50 mg, oblong, green, imprinted with 93, 7365

Image of Losartan Potassium
slide 5 of 33

Losartan Potassium

slide 6 of 33, Losartan Potassium,

100 mg, oblong, green, imprinted with 93, 7366

Image of Losartan Potassium
slide 6 of 33

Losartan Potassium

slide 7 of 33, Losartan Potassium,

25 mg, heart, green, imprinted with LK 25, logo

Image of Losartan Potassium
slide 7 of 33

Losartan Potassium

slide 8 of 33, Losartan Potassium,

50 mg, oval, green, imprinted with LK 50, logo

Image of Losartan Potassium
slide 8 of 33

Losartan Potassium

slide 9 of 33, Losartan Potassium,

100 mg, oval, green, imprinted with LK 100

Image of Losartan Potassium
slide 9 of 33

Losartan Potassium

slide 10 of 33, Losartan Potassium,

25 mg, round, pink, imprinted with SZ 210

Image of Losartan Potassium
slide 10 of 33

Losartan Potassium

slide 11 of 33, Losartan Potassium,

50 mg, round, pink, imprinted with SZ 213

Image of Losartan Potassium
slide 11 of 33

Losartan Potassium

slide 12 of 33, Losartan Potassium,

100 mg, round, pink, imprinted with SZ 214

Image of Losartan Potassium
slide 12 of 33

Losartan Potassium

slide 13 of 33, Losartan Potassium,

50 mg, oval, white, imprinted with 952

Image of Losartan Potassium
slide 13 of 33

Losartan Potassium

slide 14 of 33, Losartan Potassium,

100 mg, egg, white, imprinted with 960

Image of Losartan Potassium
slide 14 of 33

Losartan Potassium

slide 15 of 33, Losartan Potassium,

25 mg, egg, green, imprinted with LK 25, logo

Image of Losartan Potassium
slide 15 of 33

Losartan Potassium

slide 16 of 33, Losartan Potassium,

50 mg, oval, green, imprinted with LK 50, logo

Image of Losartan Potassium
slide 16 of 33

Losartan Potassium

slide 17 of 33, Losartan Potassium,

100 mg, oval, green, imprinted with LK 100, logo

Image of Losartan Potassium
slide 17 of 33

Losartan Potassium

slide 18 of 33, Losartan Potassium,

25 mg, oval, green, imprinted with E, 45

Image of Losartan Potassium
slide 18 of 33

Losartan Potassium

slide 19 of 33, Losartan Potassium,

50 mg, oval, green, imprinted with E, 4 6

Image of Losartan Potassium
slide 19 of 33

Losartan Potassium

slide 20 of 33, Losartan Potassium,

100 mg, oval, green, imprinted with E, 47

Image of Losartan Potassium
slide 20 of 33

Losartan Potassium

slide 21 of 33, Losartan Potassium,

25 mg, oblong, white, imprinted with Z, 2

Image of Losartan Potassium
slide 21 of 33

Losartan Potassium

slide 22 of 33, Losartan Potassium,

50 mg, oblong, white, imprinted with Z16

Image of Losartan Potassium
slide 22 of 33

Losartan Potassium

slide 23 of 33, Losartan Potassium,

100 mg, oblong, white, imprinted with Z18

Image of Losartan Potassium
slide 23 of 33

Cozaar

slide 24 of 33, Cozaar,

100 mg, egg, white, imprinted with 960

Image of Cozaar
slide 24 of 33

Cozaar

slide 25 of 33, Cozaar,

25 mg, oval, white, imprinted with 951

Image of Cozaar
slide 25 of 33

Cozaar

slide 26 of 33, Cozaar,

50 mg, oval, white, imprinted with 952

Image of Cozaar
slide 26 of 33

Losartan Potassium

slide 27 of 33, Losartan Potassium,

100 mg, round, white, imprinted with APO, LS 100

Image of Losartan Potassium
slide 27 of 33

Losartan Potassium

slide 28 of 33, Losartan Potassium,

100 mg, round, green, imprinted with 54 357

Image of Losartan Potassium
slide 28 of 33

Losartan Potassium

slide 29 of 33, Losartan Potassium,

25 mg, round, white, imprinted with APO, LS 25

Image of Losartan Potassium
slide 29 of 33

Losartan Potassium

slide 30 of 33, Losartan Potassium,

25 mg, round, green, imprinted with 54 277

Image of Losartan Potassium
slide 30 of 33

Losartan Potassium

slide 31 of 33, Losartan Potassium,

50 mg, oval, white, imprinted with 114

Image of Losartan Potassium
slide 31 of 33

Losartan Potassium

slide 32 of 33, Losartan Potassium,

50 mg, round, white, imprinted with APO, LS 50

Image of Losartan Potassium
slide 32 of 33

Losartan Potassium

slide 33 of 33, Losartan Potassium,

50 mg, round, green, imprinted with 54 125

Image of Losartan Potassium
slide 33 of 33
What is the most important information I should know about losartan?

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

Do not use if you are pregnant, and tell your doctor right away if you become pregnant. Losartan can cause injury or death to the unborn baby during your second or third trimester.

If you have diabetes, do not use losartan together with any medication that contains aliskiren (a blood pressure medicine).

What is losartan?

What is losartan?

Losartan is an angiotensin II receptor antagonist (sometimes called an ARB blocker).

Losartan is used to treat high blood pressure (hypertension) in adults and children who are at least 6 years old. It is also used to lower the risk of stroke in certain people with heart disease.

Losartan is also used to slow long-term kidney damage in people with type 2 diabetes who also have high blood pressure.

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

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

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

You should not use losartan if you are allergic to it.

If you have diabetes, do not use losartan together with any medication that contains aliskiren (a blood pressure medicine).

You may also need to avoid taking losartan with aliskiren if you have kidney disease.

Do not use if you are pregnant, and tell your doctor right away if you become pregnant. Losartan can cause injury or death to the unborn baby if you take the medicine during your second or third trimester.

Tell your doctor if you have ever had:

  • kidney disease;
  • liver disease;
  • congestive heart failure;
  • an electrolyte imbalance (such as high levels of potassium in your blood);
  • if you are on a low-salt diet; or
  • if you are dehydrated.

You should not breast-feed while using this medicine.

Losartan is not approved for use by anyone younger than 6 years old.

How should I take losartan?

How should I take losartan?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.

You may take losartan with or without food.

Call your doctor if you are sick with vomiting or diarrhea, or if you are sweating more than usual. You can easily become dehydrated while taking losartan. This can lead to very low blood pressure, a serious electrolyte imbalance, or kidney failure.

Your blood pressure will need to be checked often and you may need other blood and urine tests.

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

If you have high blood pressure, keep using this medicine even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medicine for the rest of your life.

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

What happens if I miss a dose?

What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

What happens if I overdose?

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking losartan?

What should I avoid while taking losartan?

Drinking alcohol can further lower your blood pressure and may increase certain side effects of losartan.

Do not use potassium supplements or salt substitutes, unless your doctor has told you to.

Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.

What are the possible side effects of losartan?

What are the possible side effects of losartan?

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • a light-headed feeling, like you might pass out;
  • pain or burning when you urinate;
  • high potassium level --nausea, weakness, tingly feeling, chest pain, irregular heartbeats, loss of movement; or
  • kidney problems --little or no urination, rapid weight gain, painful or difficult urination, swelling in your hands, feet, or ankles.

Common side effects may include:

  • dizziness;
  • back pain; or
  • cold symptoms such as stuffy nose, sneezing, sore throat.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect losartan?

What other drugs will affect losartan?

Tell your doctor about all your other medicines, especially:

  • a diuretic or "water pill";
  • other blood pressure medications;
  • lithium; or
  • NSAIDs (nonsteroidal anti-inflammatory drugs) --aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others.

This list is not complete. Other drugs may affect losartan, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Where can I get more information?

Where can I get more information?

Your pharmacist can provide more information about losartan.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

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