Losartan patient information leaflet

buy now

Important Information: Please read this leaflet carefully before taking Losartan. It contains essential information about the medication and its potential side effects. Consult your healthcare professional for any questions or concerns.

What is Losartan?

Losartan is a medication used to treat high blood pressure (hypertension) and improve kidney function in patients with diabetes. It belongs to a class of drugs known as angiotensin II receptor blockers (ARBs).

How to Take Losartan:

Follow your doctor’s instructions for taking Losartan. Typically, the recommended starting dose is 50mg once daily. It can be taken with or without food. Do not exceed the prescribed dosage unless directed by your doctor.

Possible Side Effects:

Common side effects of Losartan may include dizziness, headache, and fatigue. In rare cases, it may cause allergic reactions, kidney problems, or liver issues. If you experience any severe side effects, contact your doctor immediately.

Disclaimer: This information is provided for educational purposes and should not replace medical advice from a qualified healthcare professional. Always consult your doctor before starting or changing any medication regimen.


Losartan is an effective medication for treating high blood pressure (hypertension) and reducing the risk of stroke in patients with an enlarged heart. It works by relaxing blood vessels, allowing blood to flow more easily, which helps lower blood pressure and improves the heart’s pumping ability.

Key benefits of Losartan include:

  • Lowering blood pressure
  • Reducing the risk of stroke
  • Improving heart function
See also  Difference between losartan and olmesartan

It is important to take Losartan as prescribed by your healthcare provider to experience these benefits and maintain good cardiovascular health.


Losartan is an effective medication for treating high blood pressure and reducing the risk of stroke in patients with diabetes. It helps to relax blood vessels, allowing blood to flow more easily and lowering blood pressure. By controlling blood pressure, losartan can help prevent heart attacks, kidney problems, and other complications associated with hypertension.

Additionally, losartan may also be prescribed to improve heart function in patients with heart failure. It can help reduce the workload on the heart and improve symptoms such as shortness of breath and fatigue.

Overall, the benefits of losartan include lowering blood pressure, reducing the risk of stroke, protecting the kidneys, and improving heart function in certain patients.

Side Effects

It is important to be aware of the possible side effects of taking Losartan. While not everyone will experience these side effects, some common ones include:

Mild Side Effects:

  • Dizziness: Some patients may feel lightheaded or dizzy when taking Losartan.
  • Fatigue: Feeling tired or lacking energy is a common side effect.
  • Cold-like Symptoms: Some individuals may experience a runny nose, sore throat, or cough.

Severe Side Effects:

Severe Side Effects:

  • Chest Pain: If you experience chest pain while taking Losartan, seek medical attention immediately.
  • Swelling: Swelling of the face, lips, throat, or tongue could indicate a severe allergic reaction.
  • Difficulty Breathing: Shortness of breath or difficulty breathing should be addressed promptly.

If you notice any side effects while taking Losartan, it is important to consult your healthcare provider. Do not discontinue the medication without medical advice.

See also  Losartan hct dexcel

Side Effects

Losartan is generally well tolerated, but like any medication, it can cause side effects in some people. Common side effects include:

Headache Dizziness
Fatigue Cough
Back pain Stomach pain

Serious Side Effects

Although rare, losartan can cause serious side effects that require immediate medical attention. These include:

  • Severe allergic reactions
  • Chest pain or tightness
  • Difficulty breathing
  • Swelling of the face, lips, or throat

If you experience any of these serious side effects, stop taking losartan and seek medical help immediately.

Warning Signs

It is important to be aware of certain warning signs that may indicate a serious reaction to losartan. If you experience any of the following symptoms, seek medical attention immediately:

  • Sudden swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Chest pain or tightness
  • Extreme fatigue or weakness
  • Rapid or irregular heartbeat

If you notice any of these warning signs, stop taking losartan and contact your healthcare provider or go to the nearest emergency room for evaluation and treatment.


Before taking Losartan, inform your doctor about any medical conditions you have, especially if you have a history of kidney disease, liver disease, or dehydration. It is important to disclose all medications, supplements, and herbal remedies you are currently taking to avoid potential interactions.

Special Instructions

Patients with diabetes should monitor their blood sugar closely while taking Losartan, as it may affect glucose levels. Pregnant women should not use Losartan during the second and third trimesters, as it can cause harm to the fetus.



When taking Losartan, it is important to be aware of potential drug interactions. Some medications may interact with Losartan and either increase or decrease its effectiveness, or cause unwanted side effects. It is crucial to inform your healthcare provider about all the medications, supplements, and herbal remedies you are currently taking before starting Losartan.

See also  Verapamil versus losartan

Some of the common medications that may interact with Losartan include:

  • Potassium Supplements: Taking potassium supplements alongside Losartan may increase the levels of potassium in your blood to dangerous levels. It is essential to avoid using potassium supplements unless advised by your healthcare provider.
  • NSAIDs (Nonsteroidal Anti-Inflammatory Drugs): NSAIDs such as ibuprofen or naproxen may reduce the effectiveness of Losartan in lowering blood pressure. Consult your doctor before taking NSAIDs while on Losartan therapy.
  • Lithium: Losartan may increase the levels of lithium in the blood, which can be harmful. If you are taking lithium, inform your healthcare provider before starting Losartan.

Always consult with your healthcare provider or pharmacist before initiating any new medications alongside Losartan to prevent any potential interactions and ensure the safe and effective treatment of your condition.


Store in a cool, dry place away from direct sunlight and moisture.

Keep out of reach of children and pets.

Do not store medication in the bathroom or near the kitchen sink.

Check the expiration date before use and dispose of any expired medication properly.