Not medical advice. This information is for educational purposes only. Always consult a qualified doctor or pharmacist before taking any medicine. Losartan requires a valid prescription.
Losartan
Generic Name: LOSARTAN POTASSIUM
Losartan potassium is an angiotensin II receptor blocker acting on the AT 1 receptor subtype.
Data last updated: 30 March 2026 · Source: openFDA.gov, DailyMed (NLM/NIH)
Common Brand Names in India:
What is Losartan Used For?
- Hypertension in adults and pediatric patients 6 years of age and older
How Does It Work?
Losartan and its principal active metabolite block the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selectively blocking the binding of angiotensin II to the AT 1 receptor found in many tissues, (e.g., vascular smooth muscle, adrenal gland).
Dosage & Administration
- The dosage can be increased to a maximum dose of 100 mg once daily as needed to control blood pressure [see Clinical Studies ].
- A starting dose of 25 mg is recommended for patients with possible intravascular depletion (e.g., on diuretic therapy).
Side Effects
Common Side Effects
Serious Side Effects (seek immediate medical attention)
Warnings & Precautions
- 5 WARNINGS AND PRECAUTIONS Hypotension: Correct volume or salt depletion prior to administration of losartan potassium. Monitor renal function and potassium in susceptible patients. (5.3 , 5.4) 5.1 Fetal Toxicity Losartan potassium can cause fetal harm when administered to a pregnant woman.
- Patients whose renal function may depend in part on the activity of the renin-angiotensin system (e.g., patients with renal artery stenosis, chronic kidney disease, severe congestive heart failure, or volume depletion) may be at particular risk of developing acute renal failure on losartan potassium.
Who Should NOT Take This?
- Losartan potassium is contraindicated: In patients who are hypersensitive to any component of this product. For coadministration with aliskiren in patients with diabetes. Hypersensitivity to any component. (4) Coadministration with aliskiren in patients with diabetes. (4)
Drug Interactions
Losartan may interact with the following medicines. Always inform your doctor about all medications you are taking.
Storage Instructions
Store at room temperature, away from moisture and heat.
Speak to a cardiologist on Zospital
Consult a cardiologist on Zospital before starting Losartan. Verified Indian specialists available for in-clinic and online consultations.
Other Blood Pressure Medicines
Sources: openFDA.gov · dailymed.nlm.nih.gov · nlm.nih.gov (RxNorm). Information is for educational purposes only. Consult a doctor before use.
FAQS
Losartan – Frequently Asked Questions
Common questions about Losartan, its uses, dosage and safety.
Losartan is commonly prescribed in India for: Hypertension in adults and pediatric patients 6 years of age and older. Always confirm the indication with a registered medical practitioner before starting any course.
Losartan is sold in India under brand names such as Repace, Cozaar, Covance, Losacar, Hyzaar, Arbli. You can also find it on online pharmacies like 1mg, Pharmeasy and Apollo Pharmacy.
Losartan is a prescription-only (Schedule H) medicine in India. You will need a valid prescription from a registered MBBS / MD doctor to purchase it from a licensed pharmacy.
Common side effects of Losartan can include: Nausea, Vomiting, Diarrhea, Constipation, Headache, Dizziness, Fatigue, Rash. Less common but serious side effects can include: Anaphylactic, Rhabdomyolysis. Stop the medicine and contact your doctor immediately if any of these appear.
Losartan and its principal active metabolite block the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selectively blocking the binding of angiotensin II to the AT 1 receptor found in many tissues, (e.g., vascular smooth muscle, adrenal gland).
Losartan can interact with: Inhibition, Renin, Angiotensin, Coadministration, Steroidal. Tell your doctor about every medicine, supplement and herbal product you take — including ayurvedic and homeopathy preparations — before starting Losartan.
Indian guidelines often recommend lower starting doses of Losartan for patients above 60-65, since kidney and liver function decline with age. A doctor should review the dose, especially if the patient already takes BP, sugar or heart medicines.
Pregnancy safety of Losartan depends on the trimester and individual case. Indian gynaecologists usually avoid Category C/D drugs unless benefit clearly outweighs risk. Speak to your obstetrician before taking Losartan during pregnancy or while planning conception.
Prices in India typically range from ₹30 – ₹250 per strip of 10 tablets depending on brand. Generic versions tend to cost 30-60% less than branded ones, and Jan Aushadhi outlets often stock the lowest-priced equivalents. Check 1mg or Pharmeasy for live MRP.
If you remember within a few hours of the missed dose, take it. If it is nearly time for the next dose, skip the missed one — never double up. Frequent missed doses reduce Losartan's effectiveness, so consider setting a reminder or speaking to your doctor about a simpler schedule.
You can book an in-person or online consultation with a verified Indian specialist on Zospital — visit the doctor directory at https://zospital.com/doctor to find one near you.
Medical Disclaimer
The content provided on Zospital is for general informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. If you think you may have a medical emergency, call your doctor or emergency services immediately.