Losartan.

Overview

Losartan is an angiotensin receptor blocker (ARB) used in hypertension and selected heart or kidney conditions.

It is important to check the exact formulation, country-specific label and whether the product was prescribed for you. Different brands and combinations may have different directions.

How it is used

High blood pressure and other indications. The choice of medicine, length of treatment and method of use are decided based on the clinical reason, other conditions and the specific approved product.

How it works

Losartan blocks angiotensin II at AT1 receptors, which helps relax blood vessels and affects aldosterone-related sodium and potassium handling. This mechanism explains why kidney function and potassium monitoring may be important.

The exact therapeutic benefits and safety risks depend on the formulation, indication and person. Check the linked approved reference for clinical details.

Key safety points

Kidney function and potassium levels may need monitoring. It must not be used during pregnancy because of fetal risk.

Do not use this website to select an individual dose. An approved label or healthcare professional should guide dosing and formulation changes.

Possible side effects

Dizziness may occur, especially with other blood-pressure treatments. Report unusual weakness or changes in urination.

This is not an exhaustive list. For a comprehensive side-effect list and warning signs, check the current product leaflet or official labeling.

Interactions and special situations

Tell the clinician about kidney issues, pregnancy possibility, potassium supplements and interacting medicines.

Always give your clinician or pharmacist an up-to-date list of prescription medicines, over-the-counter products, supplements and known allergies.

Questions for your pharmacist

Why am I taking this medicine? How and when should I use my specific product? What should I do if I miss a dose? Which symptoms require urgent help? Are there interactions with my current medicines, foods or supplements? When should the treatment be reviewed?

Sources and review

This educational summary is a starting point only. The reference linked below provides more detailed information. Medical information changes and may differ by country; always confirm instructions with a current local approved label.