Losartan is a prescription medicine used to treat high blood pressure (hypertension). It is also used to lower the risk of stroke in certain people with heart disease. Losartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing blood vessels so that blood can flow more easily.
Losartan is a medication used for several purposes related to blood pressure and heart health. Here's a breakdown of its key points:
- Drug class: Losartan belongs to a class of medications called angiotensin II receptor blockers (ARBs) [1].
- Conditions it treats: Losartan is primarily used to treat:
- High blood pressure (hypertension): It helps relax blood vessels, allowing blood to flow more smoothly and reducing strain on the heart [1, 2].
- Diabetic nephropathy: This is a kidney complication that can arise from diabetes. Losartan helps protect the kidneys from damage [2].
- Heart failure: Losartan can improve heart function and reduce the risk of hospitalization in some heart failure patients [2].
- Stroke prevention: In some cases, losartan may be used to help prevent stroke in people with high blood pressure and enlarged hearts [2].
Mechanism of action: Losartan works by blocking the effects of angiotensin II, a hormone that naturally narrows blood vessels. By blocking this action, losartan allows blood vessels to relax, lowering blood pressure and reducing strain on the heart [1, 2].
Dosage and Forms: Losartan comes in tablet form and is usually taken once daily, with or without food [1]. The dosage depends on the specific condition being treated and your doctor's recommendations.
Important Considerations:
- Not for everyone: Losartan may not be suitable for pregnant or breastfeeding women, or people with certain kidney or liver problems [1].
- Side effects: Dizziness, lightheadedness, and fatigue are common side effects. It can also interact with other medications, so it's vital to tell your doctor about all medications you're taking before starting Losartan [1, 2].
- Monitoring: Your doctor may need to monitor your blood pressure and kidney function regularly while you take Losartan [2].