Losartan is used for:
Treating high blood pressure alone or with other medicines. Losartan is used in certain patients to decrease the risk of stroke. Losartan is used in certain patients to treat kidney problems caused by diabetes (diabetic nephropathy). Losartan may also be used for other conditions as determined by your doctor.
Losartan is an angiotensin II receptor blocker (ARB). It works by relaxing blood vessels. This helps to lower blood pressure.
Do NOT use Losartan if:
- you are allergic to any ingredient in Losartan
- you are in your second or third trimester of pregnanc
- the patient is a child with severe kidney problem
Before using Losartan :
Some medical conditions may interact with Losartan . Tell your health care provider if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you are able to become pregnant
- if you have a history of angioedema (swelling of the hands, face, lips, eyes, throat, or tongue; difficulty swallowing or breathing; or hoarseness), including angioedema caused by treatment with an angiotensin-converting enzyme (ACE) inhibitor (eg, lisinopril)
- if you have a history of heart problems (eg, heart failure), blood vessel problems, blood flow problems, liver or kidney problems, or diabetes
- if you have a history of stroke or recent heart attack
- if you are dehydrated or have low blood volume
- if you have electrolyte problems (eg, high blood potassium levels, low blood sodium levels) or are on a low-salt (sodium) diet
- if you are on dialysis or are scheduled to have major surgery
Some MEDICINES MAY INTERACT with Losartan . Tell your health care provider if you are taking any other medicines, especially any of the following:
- Diuretics (eg, furosemide, hydrochlorothiazide) because the risk of low blood pressure may be increased
- Potassium-sparing diuretics (eg, spironolactone, triamterene) or potassium supplements because the risk of high blood potassium levels may be increased
- Nonsteroidal anti-inflammatory drugs (NSAIDs) (eg, ibuprofen, indomethacin, celecoxib) or rifampin because they may decrease Losartan 's effectiveness
- Lithium because the risk of its side effects may be increased by Losartan
How to use Losartan :
Use Losartan as directed by your doctor. Check the label on Losartan for exact dosing instructions.
- Take Losartan by mouth with or without food.
- Take Losartan on a regular schedule to get the most benefit from it. Taking Losartan at the same time each day will help you remember to take it.
- Continue to take Losartan even if you feel well. Do not miss any doses.
- If you miss a dose of Losartan , take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Important safety information:
- Losartan may cause dizziness, lightheadedness, or fainting. These effects may be worse if you take Losartan with alcohol or certain medicines. Use Losartan with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to Losartan.
- Losartan may cause dizziness, lightheadedness, or fainting; alcohol, hot weather, exercise, or fever may increase these effects. To prevent them, sit up or stand slowly, especially in the morning. Sit or lie down at the first sign of any of these effects.
- Losartan may cause a serious side effect called angioedema. Contact your doctor at once if you develop swelling of the hands, face, lips, eyes throat, or tongue; difficulty swallowing or breathing; or hoarseness.
- Losartan may not work as well to reduce the risk of stroke in black patients. Discuss any questions or concerns with your doctor.
- Dehydration, excessive sweating, vomiting, or diarrhea may increase the risk of low blood pressure. Contact your health care provider at once if any of these occur.
- Check with your doctor before you use a salt substitute or a product that has potassium in it.
- Tell your doctor or dentist that you take Losartan before you receive any medical or dental care, emergency care, or surgery.
- Patients who take medicine for high blood pressure often feel tired or run down for a few weeks after starting treatment. Be sure to take your medicine even if you may not feel "normal." Tell your doctor if you develop any new symptoms.
- If you have high blood pressure, do not use nonprescription products that contain stimulants. These products may include diet pills or cold medicines. Contact your doctor if you have any questions or concerns.
- Diabetes patients- This may affect your blood sugar. Check blood sugar levels closely. Ask your doctor before you change the dose of your diabetes medicine.
- Lab tests, including blood pressure, blood electrolyte levels, and heart, kidney, or liver function, may be performed while you use Losartan . These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
- Losartan should not be used in CHILDREN younger than 6 years old; safety and effectiveness in these children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: Losartan may cause birth defects or fetal death if you take it while you are pregnant. If you think you may be pregnant, contact your doctor right away. It is not known if Losartan is found in breast milk. Do not breast-feed while taking Losartan .
Possible side effects of Losartan :
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Diarrhea; dizziness; tiredness.
Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; hoarseness); change in the amount of urine produced; chest pain; dark urine; difficulty swallowing; fast, slow, or irregular heartbeat; muscle pain or cramps; severe or persistent stomach pain (with or without nausea or vomiting); symptoms of low blood pressure (eg, fainting, severe dizziness, lightheadedness); unusual bruising or bleeding; vision changes; yellowing of the eyes or skin.