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    Information about Losartan

    Losartan uses

    How losartan works

    Losartan is an angiotensin receptor blocker (ARB). It relaxes the blood vessel by blocking the action of a chemical that usually makes blood vessels tighter. This lowers the blood pressure, allowing the blood to flow more smoothly to different organs and the heart to pump more efficiently.

    Common side effects of losartan

    Dizziness, Decreased blood pressure, Hypoglycemia (low blood sugar level), Increased potassium level in blood, Increased blood urea
    Content Details
    Written By
    Dr. Betina Chandolia
    MDS, BDS
    Reviewed By
    Dr. Ashish Ranjan
    MD (Pharmacology), MBBS
    Last updated on:
    10 Jan 2020 | 12:39 PM (IST)
    Want to know more?
    Read Our Editorial Policy

    Available Medicine for Losartan

    • ₹57 to ₹108
      Torrent Pharmaceuticals Ltd
      3 variant(s)
    • ₹38 to ₹125
      Sun Pharmaceutical Industries Ltd
      3 variant(s)
    • ₹38 to ₹144
      Sun Pharmaceutical Industries Ltd
      3 variant(s)
    • ₹53 to ₹73
      Zydus Cadila
      4 variant(s)
    • ₹22 to ₹39
      Mankind Pharma Ltd
      2 variant(s)
    • ₹34 to ₹64
      Torrent Pharmaceuticals Ltd
      2 variant(s)
    • ₹29 to ₹58
      Ipca Laboratories Ltd
      2 variant(s)
    • ₹61 to ₹119
      Cadila Pharmaceuticals Ltd
      2 variant(s)
    • ₹10 to ₹22
      Unison Pharmaceuticals Pvt Ltd
      2 variant(s)
    • ₹33 to ₹57
      Micro Labs Ltd
      2 variant(s)

    Expert advice for Losartan

    • Take it at the same time every day to help you remember to take it.
    • It can make you feel dizzy for the first few days. Rise slowly if you have been sitting or lying down for a long time.
    • Your doctor may get regular tests done to monitor the level of urea, creatinine, and potassium in your blood.
    • Avoid taking anti-inflammatory medicines such as ibuprofen along with this medicine without consulting your doctor.
    • Do not take Losartan if you are pregnant or breastfeeding.
    • Do not stop taking it suddenly without talking to your doctor.

    Frequently asked questions for Losartan


    Q. Can I feel dizzy after taking Losartan?

    Yes, the use of Losartan can make you feel dizzy. This may occur when you suddenly get up from lying or sitting position. To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down.

    Q. Is Losartan a good blood pressure medicine?

    Losartan is used by many people for lowering blood pressure. This medicine generally has very few side effects. In addition to lowering blood pressure, it also protects kidney function in high blood pressure patients having diabetes and impaired kidney function (diabetic nephropathy). It is also used to treat chronic heart failure when treatment with other medicines fails to prove effective. It also decreases the risk of stroke in patients who are hypertensive and have thicker left ventricle (heart chamber).

    Q. What are some of the lifestyle changes I should make while using Losartan?

    Making lifestyle changes while taking Losartan can boost your health. Avoid smoking, as smoking increases your risk of having heart attack and stroke. If you are overweight or obese, try to lose weight. You should maintain a healthy diet by including fruits and vegetable in your meals. Regular exercise can make your heart strong and reduce the risk of heart attack.

    Q. Does Losartan cause weight gain?

    No, Losartan does not cause weight gain. However, if your kidney function deteriorates, then your body may swell due to accumulation of water, causing weight gain. Call your doctor if you experience unexplained weight gain or swelling in your feet, ankles or hands.

    Q. Is Losartan hard on the kidneys?

    Losartan may impair kidney function in patients having severe heart failure, chronic kidney disease or narrow or blocked blood vessels that lead to the kidneys (renal artery stenosis). Its use may affect the kidney function in patients who have experienced severe fluid loss or dehydration due to vomiting, diarrhea or excessive use of diuretics. Therefore, Losartan should be used cautiously in these patients and their kidney function should be regularly monitored.

    Q. How long does Losartan take to work?

    The blood pressure lowering effect of Losartan can be seen after about 6 hours of taking it and is maintained for 24 hours. You may take about 3-6 weeks to see the full benefits of this medicine.

    Q. When and how should Losartan be taken?

    Take Losartan exactly as per your doctor’s advice. Losartan tablets are meant for oral intake. Swallow the tablet with water. You can take it with or without food. The dose will depend on the condition you are being treated for. It is recommended that you take your first dose before bedtime, as it can make you dizzy. After taking the first dose, you can take it at any time of the day but try to take it at the same time each day.

    Q. What is the most important information that I need to know about Losartan?

    Taking Losartan during the last 6 months of pregnancy can cause serious harm or even death of the unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Do not take Losartan if you are pregnant. If you become pregnant while taking Losartan, stop taking Losartan and call your doctor immediately.

    Q. For how long do I need to take Losartan?

    You may have to take Losartan for a long term maybe even life long. Losartan controls blood pressure but does not cure it. Talk to your doctor in case you have any concerns regarding Losartan, but do not stop taking it without consulting the doctor.

    Q. What are the long-term side effects of Losartan?

    Long-term use of Losartan is generally considered to be safe. However, in some cases, long-term use of Losartan may adversely affect the functioning of the kidneys. Therefore, to keep a track of how well the kidneys are working, the doctor may prescribe regular blood tests.

    Content on this page was last updated on 10 January, 2020, by Dr. Varun Gupta (MD Pharmacology)