Cozaar (losartan) prescription available online 

If you suffer from high blood pressure, diabetic nephropathy, or left ventricular hypertrophy, losartan can help. Get a new prescription or refill of losartan from a board-certified doctor online today.*

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Take control of your blood pressure

Help improve blood flow

Several FDA-approved uses

*Prescriptions are provided at the doctor’s discretion. Learn more about our controlled substances policy and how you can save up to 80% with our prescription discount card.

About losartan

Losartan belongs to a class of drugs called angiotensin II receptor antagonists (ARB blockers), which prevent blood vessels from narrowing. Angiotensin receptor blockers help lower blood pressure and improve blood flow.

Some conditions that losartan is known to treat include high blood pressure (hypertension), diabetic nephropathy, and left ventricular hypertrophy. Losartan is available only by prescription. It is available in a generic formulation under different brand names, including Cozaar.

Losartan may be prescribed as a tablet or liquid suspension. It’s always important to follow the specific instructions on your prescription, as they can vary based on the formulation and dosage prescribed.

If you're prescribed losartan, be sure to complete the full course of the angiotensin receptor blockers unless your doctor specifically tells you to stop. If you don’t complete your prescription, the angiotensin receptor blockers may not fully treat your high blood pressure, diabetic nephropathy, or left ventricular hypertrophy.

Losartan uses

There are several FDA-approved uses for losartan, but it may also be used off-label to treat other conditions. Your online medical professional may prescribe it for any of the following common reasons.

It’s also possible that healthcare professionals may prescribe it for other reasons not listed here. If you have questions about why a medication is prescribed, ask your online doctor or pharmacist.

  • High blood pressure (hypertension)

    Cozaar is FDA-approved to treat high blood pressure (hypertension). Lowering blood pressure helps reduce the risk of fatal and nonfatal cardiovascular events, including strokes and heart attacks.

  • Diabetic nephropathy

    Cozaar is FDA-approved to treat neuropathy with elevated serum creatinine and proteinuria in patients with type 2 diabetes.

  • Left ventricular hypertrophy

    Cozaar is FDA-approved to reduce the risk of stroke in patients with high blood pressure and left ventricular hypertrophy.

Losartan side effects

  • The side effects associated with taking losartan are typically mild. Most Losartan side effects are associated with dizziness. Losartan has some common side effects. They may include:

    • Dizziness

    • Back pain

    • Cold symptoms, such as runny nose or sore throat

    Other side effects, which are less common but might be more severe, could include:

    • Severe dizziness

    • Lightheadedness

    • Signs of kidney problems

    Tell your doctor if any adverse effects occur, or if you develop any other new or concerning symptoms. The use of Cozaar is not approved in children under six years old.

How to take losartan

Your pharmacist will provide you with instructions on how to take your losartan prescription. Be sure to read your prescription label and follow the instructions. Call your doctor or pharmacy if you have any questions.

Losartan can come in different forms and doses, so be sure to follow the specific instructions on your prescription. The starting dose of Cozaar is typically 50 mg orally once daily, while the maximum dose is 100 mg orally once daily.

Cozaar can be taken with or without food. Your doctor will monitor renal function periodically and perform regular blood pressure tests to make sure Cozaar is safe for you. Take your medication regularly, even if your symptoms improve.

What to avoid while taking losartan

Losartan has 295 drug interactions. Don’t change what you take without checking with your doctor or pharmacist. That includes other medications, nonprescription drugs, and herbal products.

Possible drug interactions with losartan include:

Avoid taking potassium supplements or eating high-potassium foods without talking to your doctor. Avoid consuming grapefruit or grapefruit juice while taking losartan.

Ask your doctor for medical advice before drinking alcohol. Alcohol can cause heart rhythm problems when mixed with Cozaar.

Medication alternatives to losartan

If your healthcare provider prefers to put you on another treatment, they may suggest another angiotensin II receptor antagonist or antihypertensive agent in another drug class. Here are some common doctor-recommended alternatives based on your health issue:

Losartan prescription FAQs

  • How much does losartan cost?

    Depending on your pharmacy, losartan costs around $14 for thirty 50 mg tablets without insurance. Losartan is a generic brand, and brand names, such as Cozaar, may cost more.

  • How can I refill my losartan prescription?

    To refill your losartan prescription, book a virtual appointment with a board-certified PlushCare doctor. After reviewing your symptoms and medical history, your doctor can send an electronic prescription to your local pharmacy.

  • What should I avoid while taking losartan?

    Avoid eating grapefruit or drinking grapefruit juice while taking losartan, as grapefruit may make Cozaar less effective. Avoid drinking alcohol to prevent potential adverse reactions, such as heart rhythm problems.

    Do not take potassium supplements or eat high-potassium foods without your doctor's approval. Be careful when getting up from a sitting or lying position or you may feel dizzy.

  • What do I need to know before taking losartan?

    Losartan may cause dizziness. Your doctor may suggest taking your first dose before bedtime to prevent dizziness.

  • How long does it take to adjust to taking losartan?

    Losartan starts working soon after your first dose, but it may take 3–6 weeks for Cozaar to take full effect.

  • Who should not take losartan?

    To make sure Cozaar is safe for you, talk to your doctor if you have any of the following conditions:

    • Serious kidney problems, kidney failure, or impaired kidney function

    • Acute renal failure

    • Liver disease

    • Congestive heart failure

    • If you're on a low-salt diet

    • Electrolyte imbalance

    Avoid taking losartan if you're pregnant or breast-feeding. Cozaar can cause injury or death to an unborn baby in the second or third trimester.

  • What happens if I miss a dose of losartan?

    If you miss a dose of losartan, take the missed dose as soon as you remember. Skip the missed dose if it's almost time for your next dose. Avoid taking two doses to make up for a missed dose.

  • What happens if I take too much losartan?

    If you've taken too much losartan, seek emergency medical help or contact your local poison control center.

3 simple steps to request your losartan prescription today 

Step 1: Book an appointment

Step 1

Book a losartan prescription request appointment.

Book a same day appointment from anywhere.

Step 2: Visit with a doctor on your smartphone

Step 2

Talk to your medical provider regarding your losartan prescription.

Visit with a doctor on your smartphone or computer.

Step 3: pick up at local pharmacy

Step 3

Pick up your losartan prescription.

We can send prescriptions to any local pharmacy.

Losartan prescription pricing details

How pricing works

To get a new or refill on your losartan prescription, join our monthly membership and get discounted visits.

Paying with insurance



First month free



30 days of free membership

  • Same-day appointments 7 days a week

  • Unlimited messages with your Care Team

  • Prescription discount card to save up to 80%

  • Exclusive discounts on lab tests

  • Free memberships for your family

  • Cancel anytime

Visit price with insurance

Often the same as an office visit. Most patients with in-network insurance pay $30 or less!

  • We accept these insurance plans and many more:

    • Humana
    • Aetna
    • Cigna

Paying without insurance



First month free



30 days of free membership

  • Same-day appointments 7 days a week

  • Unlimited messages with your Care Team

  • Prescription discount card to save up to 80%

  • Exclusive discounts on lab tests

  • Free memberships for your family

  • Cancel anytime

Visit price without insurance

Initial visits are $129.

Book an appointment

If we're unable to treat you, we'll provide a full refund.


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PlushCare content is reviewed by MDs, PhDs, NPs, nutritionists, and other healthcare professionals. Learn more about our editorial standards and meet the medical team. The PlushCare site or any linked materials are not intended and should not be construed as medical advice, nor is the information a substitute for professional medical expertise or treatment.