Losartan
About Losartan
Losartan is a prescription medication used to lower high blood pressure and protect the kidneys in people with type 2 diabetes. It is also prescribed to reduce the risk of stroke in patients who have high blood pressure and an enlarged heart. By keeping blood vessels relaxed, it helps blood flow more smoothly throughout the body.
To get the most benefit, you should take Losartan consistently at the same time every day. It can be taken with or without food, depending on your preference. Combining this medication with a low-salt diet and regular physical activity can greatly improve your blood pressure results.
While taking this medication, you may experience mild side effects such as dizziness or fatigue. However, if you experience serious symptoms like swelling of your face, lips, or throat, or difficulty breathing, you must seek medical help immediately and consult your doctor.
Do not take this if you are pregnant, as it can cause serious harm or death to an unborn baby. Before starting Losartan, tell your doctor if you have liver damage, kidney disease, or severe dehydration.
This medicine can interact with other blood pressure drugs, potassium supplements, and certain pain relievers like ibuprofen. Avoid drinking alcohol while taking this medicine as it can make you feel dizzy or lightheaded, and consult specific user groups, such as pregnant, breastfeeding, or elderly individuals, to ensure safe use.
Uses of Losartan
Medicinal Benefits
Losartan helps control blood pressure and provides long-term protection for important organs that can be affected by hypertension. Regular treatment supports cardiovascular health while helping reduce the risk of complications associated with high blood pressure.
- Long-Term Cardiovascular Protection: By lowering the strain on the heart and blood vessels, Losartan helps reduce the risk of serious cardiovascular events, such as strokes, and supports overall heart health.
- Protection of Kidney Function in Diabetes: For people with diabetes, Losartan helps protect the kidneys from damage, supporting their function over time and helping delay the progression of kidney-related complications.
- Prevention of Silent Organ Damage: By keeping blood pressure under control, Losartan helps prevent the gradual, often unnoticed damage that high blood pressure can cause to vital organs, supporting long-term health and well-being.
Directions for Use
To get the maximum benefit from losartan treatment with Losartan, follow these step-by-step instructions carefully:
- Swallow the tablet whole with a glass of water.
- You can take it with or without food, but try to take it at the same time every day to maintain a steady level in your body.
- Do not crush, chew, or break the tablet unless advised by your healthcare provider.
Always follow your doctor's exact instructions regarding your dosage and treatment duration. Do not change your dose or stop taking Losartan without consulting your doctor first.
Storage
Side Effects of Losartan
Common Side Effects (Usually mild)
- Dizziness or lightheadedness
- Tiredness or fatigue
- Stuffy nose or cold-like symptoms
- Mild back or leg pain
Serious Side Effects (Consult your doctor right away)
- Swelling of the face, lips, tongue, or throat (signs of a severe allergic reaction)
- Difficulty breathing or swallowing
- A slow, fast, or irregular heartbeat
- Unusual muscle weakness (which may indicate high potassium levels)
- Unexplained yellowing of the skin or eyes
Drug Warnings
- Stand Up Slowly: Stand up slowly from a sitting or lying position to help prevent dizziness or fainting, especially when starting treatment.
- Monitor Blood Pressure Regularly: Check your blood pressure regularly at home and maintain a record to share with your doctor during appointments.
- Attend Regular Blood Tests: Have your kidney function and potassium levels checked regularly through blood tests as recommended by your healthcare provider.
- Check Before Taking New Medicines: Do not start or stop any medications, including over-the-counter pain relievers or herbal supplements, without consulting your doctor or pharmacist.
- Stop Use if Pregnancy Occurs: Stop taking this medication immediately and contact your doctor if you discover you are pregnant.
Drug Interactions
Drug-Drug Interactions
Inform your doctor if you are taking any of the following medicines, as they may interact with Losartan:
- Potassium Supplements and Potassium-Sparing Diuretics: Taking Losartan with potassium supplements or potassium-sparing water pills may lead to high potassium levels in the blood.
- NSAIDs: Combining Losartan with nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or naproxen, may reduce its effectiveness and increase the risk of kidney damage.
Drug-Food Interactions
Certain foods and beverages may affect how Losartan works or increase the risk of side effects. Examples include:
- Potassium-Containing Salt Substitutes: Avoid using potassium-containing salt substitutes while taking Losartan, as they may cause dangerously high potassium levels in the blood.
Drug-Disease Interactions
Inform your doctor if you have a history of the following conditions before taking Losartan, as it may worsen your condition or cause complications.
- Liver Disease: Tell your doctor if you have liver damage, as this medication may build up in the body and require a lower starting dose.
- Severe Kidney Disease: Inform your healthcare provider if you have severe kidney disease, as your kidney function may need to be monitored closely during treatment.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
unsafeYou are recommended to avoid consumption of alcohol with Losartan as it may increase the risk of low blood pressure and cause adverse effects such as dizziness, fainting, light-headedness or headache.
Pregnancy
unsafeLosartan is a Category D pregnancy drug and is considered unsafe for pregnant women, especially in the second and third trimesters, as it may cause death of the unborn baby.
Breast Feeding
unsafeAvoid breastfeeding while taking Losartan as it may be unsafe for the baby.
Driving
cautionLosartan may cause dizziness or drowsiness in some people. So, drive only if you are alert after taking Losartan.
Liver
cautionLosartan should be given with caution, especially if you have a history of liver disease. The dose may be adjusted by your doctor as required.
Kidney
cautionLosartan should be given with caution, especially if you have a history of kidney disease. The dose may be adjusted by your doctor as required.
Children
cautionIt is not recommended for children below 6 years. However, for children above 6 years, give Losartan in doses as prescribed by a doctor.
Habit Forming
Diet & Lifestyle Advise
- Limit Salt Intake: Limit your sodium intake, as excess salt can raise blood pressure and make Losartan less effective.
- Avoid Potassium-Rich Salt Substitutes: Avoid using salt substitutes containing potassium unless advised by your doctor, as Losartan may increase potassium levels in the blood.
- Stay Physically Active: Incorporate moderate, regular physical activity, such as walking or cycling, to help support healthy blood pressure levels.
- Stay Well-Hydrated: Drink adequate fluids throughout the day, but discuss your daily fluid goals with your doctor if you have kidney or heart conditions.
Special Advise
- Monitor your blood pressure regularly, and if you notice any fluctuations, please consult a doctor.
Patients Concern
Disease/Condition Glossary
Hypertension (high blood pressure): It is a medical condition in which the blood pressure is elevated persistently in the arteries. High blood pressure is mostly caused by obesity, diabetes, smoking, high salt intake, stress, lack of physical activity, or ageing. Normal blood pressure lies between 90/60 mmHg and 120/80 mmHg. If the blood pressure is 140/90 mmHg or greater, it is considered high blood pressure. If it is left untreated, it may lead to heart disease and stroke.
Heart failure: It is a chronic condition in which the heart is unable to pump blood as effectively as it should. Heart failure may occur due to certain conditions like high blood pressure, swelling or damage to the heart muscle, faulty heart valves, or narrow arteries in the heart. Symptoms of heart failure include tiredness, shortness of breath, fast heartbeat, and swollen legs.
Diabetic nephropathy: It is a condition in which the body does not use insulin normally and, therefore, cannot control the amount of sugar in the blood, leading to kidney problems and high blood pressure. Symptoms include poor appetite, swelling of hands, feet, and face, weakness, nausea, and drowsiness.
FAQs
Losartan is used to treat high blood pressure (hypertension), chronic heart failure, and diabetic nephropathy. It is also used to decrease the risk of stroke in people who have high blood pressure and a heart condition called left ventricular hypertrophy (enlargement of the walls of the left side of the heart).
Losartan works by blocking the action of certain natural substances that tighten the blood vessels, allowing the blood to flow more smoothly and the heart to pump more efficiently.
No, Losartan is not recommended for use during pregnancy, especially in the second and third trimesters, as it may harm the developing baby. Therefore, if you are pregnant or planning for pregnancy, please inform your doctor before taking Losartan.
You are not recommended to take more than the prescribed dose of Losartan as it may cause Losartan overdose, resulting in symptoms such as low blood pressure, fast or slow heartbeat. However, if you experience any of these symptoms while taking Losartan, please consult a doctor immediately.
No, you are not recommended to take ibuprofen with Losartan as co-administration of these two medicines may reduce the effect of Losartan and increase the risk of impaired kidney function. However, if you experience loss of appetite, sudden weight loss or weight gain, weakness, muscle cramps, vomiting, nausea, decreased or increased urination, irregular heart rhythm and fluid retention, please consult a doctor immediately. If you are supposed to use these medicines together, you are advised to contact your doctor so that the dose may be adjusted to use safely.
No, you are not recommended to take potassium supplements with Losartan as it may increase the levels of potassium in blood (hyperkalaemia). However, please consult a doctor before taking other medicines with Losartan.
Losartan may be safe for diabetic patients if it is prescribed by a doctor. Losartan protects the kidneys and slows down the decrease of kidney function in hypertensive (high blood pressure) type 2 diabetic patients.
If you have any kidney problems, it is advised to inform your doctor before taking Losartan. Losartan may worsen kidneys function if there is any existing kidney problem. However, if you experience unexplained weight gain, swelling in feet, ankles or hands, please consult your doctor immediately.
Inform your doctor about all of your past and present diseases, particularly diabetes and all the ongoing medications, supplements and herbal medicines that you are taking. If you take insulin or antidiabetic medication, monitor your blood sugar carefully while taking Losartan, especially in the first month of use. Using these diabetes medicines while taking Losartan may cause significant changes in your blood sugar levels due to drug-drug interactions.
Yes, Losartan can make you feel dizzy. This may occur when you suddenly get up from a sitting or lying position. Therefore, rise slowly if you have been sitting or lying down to lower the chance of feeling dizzy or passing out.
Many people use Losartan to lower blood pressure. In general, it has very few side effects. Also, it 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 are not effective. Additionally, it helps to lower the risk of stroke in hypertensive patients and have thicker left ventricle (heart chamber).
Lifestyle changes play a key role to maintain your healthy if you are taking Losartan. Maintain low-salt diet and find ways to reduce or manage stress in your life. Practice meditation or yoga or take up a hobby. Make sure that you have a sound sleep each night as this also helps to reduce stress levels and helps to maintain normal blood pressure. Avoid smoking and alcohol consumption. Take a diet that is rich in fruits, vegetables, whole grains and low-fat dairy products.
You may have to take Losartan for a long term, may be for the rest of your life as Losartan only controls blood pressure but does not cure it. Do not stop taking Losartan without consulting your doctor. If you have any concerns, please consult your doctor.
No, Losartan does not cause weight gain. However, if it starts affecting your kidney function then your body may swell due to the build-up of water, resulting in weight gain. If you experience unexplained weight gain or swelling in your ankles, feet or hands, consult your doctor.
Long-term use of Losartan is generally considered to be safe. However, in some cases, prolonged use may adversely affect the kidneys functioning. Therefore, your doctor may recommend regular blood tests to monitor the kidneys functioning.
Yes, Losartan may impair kidney function in patients, particularly those with chronic kidney disease, severe heart failure, or narrow or blocked blood vessels that lead to the kidneys (renal artery stenosis). Also, it may affect patients who have experienced dehydration or severe fluid loss due to diarrhea, vomiting, or excessive use of diuretics. Therefore, Losartan should be used with caution in such patients and their kidney function should be monitored regularly.
Losartan begins lowering blood pressure within a few hours (typically around 6 hours) after the first dose. However, it may take 3 to 6 weeks of regular use to achieve the full blood-pressure-lowering benefits. Continue taking it as prescribed and consult your doctor if your blood pressure remains uncontrolled.
Take Losartan exactly as advised by your doctor. You can take it with or without food. Swallow it as whole with a glass of water. Do not crush, chew or break it. Take it at the same time every day for effective results.
Taking Losartan during the second and third trimesters of pregnancy can cause serious harm or even death of the developing fetus. Therefore, it is important to inform the doctor if you are pregnant or planning pregnancy. If you become pregnant while taking Losartan, stop taking it and consult your doctor immediately.
The common side effects of Losartan are dizziness, colds (upper respiratory infection), stuffy nose and back pain. If these side effects persist or worsen, please consult your doctor.
Yes, always inform your doctor about all the prescription and non-prescription medicines, herbal supplements and vitamins you are taking to avoid drug interactions.
Store Losartan at room temperature in a cool and dry place. Protect from light. Keep it out of reach and sight of children.
It is best to avoid or strictly limit alcohol while taking this medicine. Alcohol can increase the blood pressure-lowering effect, making you feel excessively dizzy or lightheaded. Talk to your doctor for advice.
Yes, Losartan can cause your body to retain potassium, which may raise potassium levels in your blood. Avoid potassium supplements and potassium-rich salt substitutes unless prescribed by your healthcare provider.
While a dry cough is a common side effect of some other blood pressure medications, it is much less common with Losartan. If you develop a persistent, dry cough, talk to your doctor to find the cause.
Yes, high blood pressure often has no symptoms, which is why it is called a 'silent killer.' You should continue taking Losartan exactly as prescribed, even if you feel completely healthy. Talk to your doctor before stopping.
You should check with your healthcare provider first. Frequent use of pain relievers like ibuprofen can make Losartan less effective and may increase your risk of kidney damage. Talk to your doctor or pharmacist for safer pain-relief options.
You can take Losartan at any time of day, but it is best to take it at the same time every day to keep your blood pressure stable. Many people prefer to take it in the morning. Talk to your doctor to determine the best schedule for you.
