About losartan potassium
Angiotensin II receptor blocker (ARB)
Used for
- High blood pressure
- Reducing stroke risk in some people with high blood pressure and enlarged heart
- Protecting kidneys in type 2 diabetes with kidney disease
Usual adult dose
Usually 50 mg once daily for high blood pressure; dose varies by condition and response.
Usual dose in children
For ages 6 years and older with high blood pressure: usually 0.7 mg/kg once daily, up to 50 mg initially; clinician-adjusted.
Common side effects
- Dizziness
- High potassium
- Low blood pressure
- Kidney function changes
Important warnings
- Can harm or cause death to a developing fetus; avoid during pregnancy.
- Monitor kidney function and potassium, especially with kidney disease or dehydration.
- May cause dizziness, particularly when starting or increasing the dose.
- Use caution with narrowing of the kidney arteries.
Pregnancy
Can cause fetal injury or death. Discontinue promptly if pregnancy is detected.
Breastfeeding
Information is limited; use during breastfeeding is generally not recommended, especially for newborn or premature infants.
Interactions
- Potassium supplements or potassium-containing salt substitutes may raise potassium.
- NSAIDs, including ibuprofen, may worsen kidney function and reduce blood-pressure control.
- Lithium levels may rise.
- ACE inhibitors, aliskiren, or other medicines affecting the renin-angiotensin system increase risks of kidney problems and high potassium.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.