Cozaar

Losartan

Developed to manage hypertension by blocking the angiotensin II receptor.

Active ingredient
Losartan
Supply
Pharmacy
Route
Oral use
Form
Film-coated tablet
Strengths
25 · 50 · 100mg

Cozaar details

Therapeutic class
Angiotensin II Receptor Antagonist
Pharmacological class
Sartan
Known off-label uses
heart failure
Contraindications
pregnancy; severe hepatic impairment
Precautions and warnings
monitor potassium levels; monitor blood pressure
Minor side effects
dizziness; fatigue
Moderate side effects
hypotension; hyperkalaemia
Dosage forms
Film-coated tablet
Administration route
Oral use
Patient summary
developed to manage hypertension by blocking the angiotensin II receptor.
Supply category
Pharmacist only, dispensed without a prescription
Manufacturer
MSD
Onset Time
1–2 weeks
Duration
24 hours
Storage instructions
Store at room temperature.
Drug interactions
potassium supplements; lithium
Age restrictions
Use with caution in children.
Pregnancy and breastfeeding
Contraindicated in pregnancy.
Serious side effects

angioedema, requires immediate medical attention; renal failure, requires immediate medical attention

Mechanism of action

Losartan is an angiotensin II receptor antagonist that inhibits the vasoconstrictive and aldosterone-secreting effects of angiotensin II, thereby lowering blood pressure.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Cozaar

Cozaar is the original brand containing losartan, a medication used for the management of hypertension and diabetic nephropathy. Produced by MSD, it is available as a tablet in strengths ranging from 25mg to 100mg. It remains a widely recognised treatment option for cardiovascular health and renal protection.

Buying Cozaar online

Cozaar is registered across 14 markets including South Korea, Japan and the UAE, with availability also in Singapore, Hong Kong and Thailand. Generic losartan, much of it made in India, is often more affordable than the original brand, providing a reliable access route for expats and professionals living far from a major pharmacy. This medication is now one of the most ordered treatments across the region, with delivery options available across these major Asian hubs.