Losartan 25mg

Generic For: Cozaar

Losartan 25mg (brand name Cozaar) is an angiotensin II receptor blocker (ARB) used to treat high blood pressure, reduce stroke risk in certain patients, and slow kidney damage in people with type 2 diabetes. Many patients take losartan alone or alongside other blood pressure medicines such as amlodipine when one drug isn't enough. After a licensed provider reviews your information, your prescription ships from a licensed U.S. pharmacy.

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Buy Losartan 25mg Online

An angiotensin II receptor blocker (ARB) for high blood pressure, stroke risk reduction, and diabetic kidney disease

Losartan 25mg Quick Facts

Drug classAngiotensin II receptor blocker (ARB)
TreatsHigh blood pressure, stroke risk reduction, diabetic nephropathy
FormTablet
Typical dosingTake 1 tablet by mouth daily.
Prescription requiredYes — prescription only

What Is Losartan 25mg?

Losartan is an angiotensin II receptor blocker (ARB) that relaxes blood vessels by blocking a hormone that narrows them, which lowers blood pressure. It is FDA-approved to treat hypertension, to reduce the risk of stroke in patients with hypertension and left ventricular hypertrophy, and to treat diabetic nephropathy in patients with type 2 diabetes. Because losartan works differently than calcium channel blockers like amlodipine, providers sometimes prescribe losartan and amlodipine together for better blood pressure control. Losartan 25mg tablets are taken by mouth, typically once daily.

What Does Losartan 25mg Treat?

High blood pressure (hypertension) in adults and children 6 years and older
Reduction of stroke risk in patients with hypertension and left ventricular hypertrophy
Diabetic nephropathy in patients with type 2 diabetes and hypertension
Used alone or in combination with other antihypertensive agents

Losartan 25mg Dosage

Hypertension: 50 mg by mouth once daily; usual range 25–100 mg daily in 1–2 doses.
Start 25 mg once daily in patients with volume depletion or hepatic impairment.
Diabetic nephropathy: 50 mg once daily; may increase to 100 mg once daily.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Losartan 25mg Side Effects

Common side effects

  • Dizziness
  • Upper respiratory infection
  • Nasal congestion
  • Back pain
  • Fatigue
  • Diarrhea
  • Low blood pressure (especially when standing)

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

  • Allergic reaction with swelling of the face, lips, tongue, or throat (angioedema)
  • Symptoms of high potassium (muscle weakness, slow or irregular heartbeat)
  • Fainting or severe dizziness
  • Signs of kidney problems (decreased urination, swelling)
  • Severe drop in blood pressure

Warnings & Interactions

Do not use during pregnancy — can cause injury or death to the developing fetus (boxed warning)
Do not combine with aliskiren in patients with diabetes
Avoid potassium supplements and potassium-sparing diuretics unless directed by your provider
Use caution with NSAIDs, which may reduce effectiveness and affect kidney function
May cause low blood pressure in volume- or salt-depleted patients
Monitor kidney function and potassium levels during treatment
Use caution in patients with renal artery stenosis or hepatic impairment

Tell your prescriber about all medications, supplements, and health conditions before starting losartan 25mg.

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Frequently Asked Questions

Can you take losartan and amlodipine together?

Yes, losartan and amlodipine are often prescribed together when a single medication doesn't control blood pressure adequately. They work by different mechanisms — losartan is an ARB and amlodipine is a calcium channel blocker — so the combination can be complementary. Only take both if your provider has prescribed them together.

What is the difference between losartan vs amlodipine?

Losartan is an angiotensin II receptor blocker that lowers blood pressure by blocking a hormone that narrows blood vessels, while amlodipine is a calcium channel blocker that relaxes blood vessel walls directly. Both treat hypertension but belong to different drug classes with different side effect profiles. Your provider will choose one or both based on your health history and blood pressure goals.

What is the best time to take losartan and amlodipine?

Both medications are typically taken once daily, and consistency matters more than the specific time of day. Many people take them in the morning, but your provider may recommend a different schedule based on your blood pressure pattern. Follow your provider's instructions and take them at the same time each day.

Do I need a prescription for losartan?

Yes, losartan is a prescription-only medication in the United States. A licensed provider must evaluate whether it is appropriate and safe for you before it can be dispensed.

How does ordering and shipping work?

After you place your order, a licensed provider reviews your health information and prescription. Once approved, your losartan 25mg tablets are dispensed and shipped from a licensed U.S. pharmacy directly to your address.

What are the most common side effects of losartan?

The most common side effects include dizziness, nasal congestion, back pain, and fatigue. Most side effects are mild, but contact your provider if you experience swelling of the face or throat, fainting, or signs of high potassium such as muscle weakness.

Can I take losartan while pregnant?

No. Losartan carries a boxed warning because ARBs can cause injury or death to a developing fetus. If you become pregnant while taking losartan, stop the medication and contact your provider immediately.