Losartan
System: AllopathyClass: Angiotensin Receptor Blocker (ARB)Composition: Losartan PotassiumPrescription: Prescription OnlyEssential medicine (NLEM): Yes
Losartan lowers blood pressure and protects the kidneys in people with diabetes.
Common brands
- Losar
- Repace
- Losacar
Dosage forms
- Tablet
Uses
- High blood pressure
- Diabetic kidney disease
- Heart failure (selected)
How it works
Blocks angiotensin II, which narrows blood vessels.
How to take
Once daily, with or without food.
Common side effects
- Dizziness
- Tiredness
Serious side effects — get medical help
- High potassium
- Kidney function changes
- Angioedema (rare)
Who should not take it
- Pregnancy
- Taking aliskiren with diabetes
Interactions
- Potassium supplements
- NSAIDs
- Lithium
Pregnancy & breastfeeding
Must not be used in pregnancy.
Alcohol & driving
May cause dizziness.
Storage
Store below 30°C.
Used for these conditions
Prescribed by
Brands available in India
Frequently asked questions
What is Losartan used for?
High blood pressure, Diabetic kidney disease, Heart failure (selected)
What are the side effects of Losartan?
Dizziness, Tiredness
How should I take Losartan?
Once daily, with or without food.
Who should not take Losartan?
Pregnancy, Taking aliskiren with diabetes
Medically reviewed by
Medical review pending
Last updated
11 October 2026
Sources
- National List of Essential Medicines (NLEM) 2022, MoHFW
- National Formulary of India, Indian Pharmacopoeia Commission
- CDSCO approved drug information
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.