Compare Losartan vs. Atenolol

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Cozaar (Losartan)

Prescription only

Tenormin (atenolol)

Prescription only
Lowers blood pressure.

Cozaar (Losartan) is a good blood pressure-lowering medicine that protects kidney function like an ACE inhibitor, but with fewer side effects.

5.0/ 7 average rating with 535 reviewsforLosartan
Lowers blood pressure and controls heart rate.

Tenormin (atenolol) is good for controlling chest pain and treating a heart attack. It has fewer side effects than other beta blockers. You need to take it on an empty stomach and you can't skip doses.

4.9/ 7 average rating with 457 reviewsforAtenolol
Upsides
  • A first-choice blood pressure treatment for many people.
  • Lowers the risk of heart attack and stroke.
  • Similar to ACE inhibitors (like Lisinopril), with fewer side effects like cough and swelling.
  • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
  • Recommended for anyone with heart failure since it lowers the risk of death and further damage to your heart.
  • A first-choice treatment to prevent chest pain (angina).
  • A first-choice treatment for heart attack recovery.
  • At lower doses, Tenormin (atenolol) has fewer side effects than other beta blockers because it targets the heart and not other parts of the body.
Downsides
  • Requires a yearly blood test to see how the medicine is affecting your body.
  • Not safe to use if you're pregnant.
  • You need to take Tenormin (atenolol) on an empty stomach.
  • Taking a beta blocker might make you feel more tired or out of breath during exercise or normal daily routines. This gets better for most people, but it might not go away for others.
  • Not a first-choice treatment for high blood pressure unless you have heart disease. However, your doctor could add it to other medicines you're already if your blood pressure is still too high.
  • You can't miss or skip doses. If you stop Tenormin (atenolol) suddenly, it can cause your blood pressure to go up really quickly, raising your risk of heart attack and stroke.
  • Tenormin (atenolol) can hide symptoms of low blood sugar if you're diabetic.
Used for
Dosage forms
  • Pill
  • Pill
Price
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$9.35
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$4
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Reviews
535 
57%
think this treatment is worth it
48%
think this treatment works well
16%
think this treatment is a hassle

Have you used Cozaar (Losartan)?

Leave a review
457 
58%
think this treatment is worth it
48%
think this treatment works well
16%
think this treatment is a hassle

Have you used Tenormin (atenolol)?

Leave a review
Side effects
4possible side effects
  • Upper respiratory infection
    8%
  • Dizziness
    3%
  • Back pain
    2%
  • Nasal congestion
    2%
See more detailed side effects
10possible side effects
  • Tiredness
    26%
  • Dizziness
    13%
  • Cold arms and legs
    12%
  • Depression
    12%
  • Fatigue
    6%
  • Shortness of breath
    6%
  • Low blood pressure on movement changes
    4%
  • Slower heartbeat
    3%
  • Leg Pain
    3%
  • Light-headedness
    3%
See more detailed side effects
Risks and warnings
  • Harm to fetus

    Women of childbearing age

  • Liver damage

    Concurrent liver disease

  • Heart problems due to high potassium

    Current kidney problems

    ...and 2 more risk factors

See more detailed risks and warnings
  • Heart attack or increased chest pain

    Suddenly stopping Tenormin (atenolol)

  • Slowing heart rate

    Taking calcium channel blockers

  • Increased risks during surgery

    Major surgery requiring anesthesia

  • Masked symptoms of low blood sugar

    Diabetes

  • Increased risk of rebound high blood pressure

    Taking clonidine

See more detailed risks and warnings