Compare Losartan vs. Coreg

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

Cozaar
(Losartan)

Coreg
(Carvedilol)

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.Lowers blood pressure and controls heart rate. Coreg (Carvedilol) is good for controlling chest pain and treating heart failure and heart attack. You have to take it with food, and you can't miss doses.
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Reviews & ratings
Button Group. All currently active
Button Group. All currently active
4.965648854961832Losartan
Reviews for Cozaar (Losartan)
57%
of people say Cozaar (Losartan) is worth it
47%
say it works well
16%
say it's a big hassle
Reviews for Coreg (Carvedilol)
54%
3% vs. Cozaar (Losartan)
46%
1% vs. Cozaar (Losartan)
18%
2% vs. Cozaar (Losartan)
Side effects
LosartanCoreg
  • Urinary tract infection 6%
  • Diarrhea 5%
  • Low blood sugar 4%
  • Low blood pressure 4%
  • Muscle weakness/fatiguea/fatigue 4%
  • Hyperkalemia 4%
  • Chest pain 4%
  • Low red blood cells 3%
  • Muscular weakness 3%
  • Orthostatic hypotension 3%
More Losartan side effects »
  • Dizziness 13%
  • Abnormally slow heartbeat 7%
  • Low blood pressure 6%
  • Diarrhea 6%
  • High blood sugar 4%
  • Nausea 4%
  • Vision abnormal 3%
  • Fainting 3%
  • Muscle weakness 2%
  • Edema dependent 2%
More Coreg side effects »
How it works
LosartanCoreg
Cozaar (Losartan) is an angiotensin receptor blocker (ARB). It blocks a chemical that tightens blood vessels. This makes blood vessels relax, which lowers blood pressure and allows more blood and oxygen to get to your heart and other organs.Coreg (Carvedilol) is an alpha and beta blocker. It lowers blood pressure by slowing heart rate, relaxing blood vessels, and lowering the body's fight-or-flight response.
Type of medication
LosartanCoreg
Antihypertensive
Angiotensin receptor blocker
Prescription only
Antihypertensive
Beta blocker
Prescription only
Available as
LosartanCoreg
  • Pill
  • Pill
  • Extended release
Used for (click to learn more)
LosartanCoreg
Risk factors for serious side effects
LosartanCoreg
  • Women of childbearing age
  • Concurrent liver disease
  • Current kidney problems
  • Medicine that increase potassium
  • Use of salt substitute
Detailed Cozaar (Losartan) risks & warnings »
  • Abrupt discontinuation of Coreg (Carvedilol)
      • Congestive heart failure
      • Increasing the dose of Coreg (Carvedilol)
      • Diabetes
      • Major surgery requiring anesthesia
        Detailed Coreg (Carvedilol) risks & warnings »
        Pregnancy category
        LosartanCoreg
        DFDA pregnancy category (Weigh risks vs. benefits)

        Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

        See the FDA package insert
        CFDA pregnancy category (Weigh risks vs. benefits)

        Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

        See the FDA package insert
        Alcohol
        No specific alcohol-related info.No specific alcohol-related info.
        Food
        No specific food-related info.
        • You have to take Carvedilol with food.
        • Take it with food.
        Kidneys and liver
        • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
        • Requires routine blood tests to check kidney function.
        No specific kidneys and liver-related info.
        Sex
        No specific sex-related info.No specific sex-related info.
        Sleep
        No specific sleep-related info.No specific sleep-related info.
        Weight
        No specific weight-related info.
        • You may notice worsening symptoms of heart failure if your prescriber decides to increase your dosage of Coreg (Carvedilol). Tell your doctor if you noticed increased swelling around your legs or ankles, sudden weight gain or sudden shortness of breath as they may make changes to your medications for heart failure.
        Upsides and benefits
        LosartanCoreg
        • 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 failure and heart attack.
        • For people with severe heart failure, Carvedilol lowers the risk of worsening heart failure, hospitalization, and sudden death.
        Downsides and risks
        LosartanCoreg
        • Requires a yearly blood test to see how the medicine is affecting your body.
        • Not safe to use if you're pregnant.
        • You have to take Carvedilol with food.
        • 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 for some might not go away.
        • Not a first-choice treatment for high blood pressure according to the latest guidelines, except if you have heart failure or heart disease. As a second choice, your doctor might add it to medicines you're already taking if your blood pressure is still too high.
        • Can hide symptoms of low blood sugar if you're diabetic.
        • You can't miss doses. Stopping Carvedilol suddenly can cause your blood pressure to go up suddenly, which raises the risk of heart attack and stroke.
        Tips from our pharmacists for people taking the medication
        LosartanCoreg
        • Tell your doctor about any dizziness, fatigue, cough, or throat irritation that doesn't go away.
        • Requires routine blood tests to check kidney function.
        • Don't take it if you're pregnant.
        • Can cause dizziness in the first few days.
        • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
        • Take it with food.
        • Can cause fatigue and erectile dysfunction.
        • Can hide symptoms of low blood sugar. Be careful if you're diabetic.
        • Don't stop taking this medicine suddenly.
        • Can cause dizziness in the first few days.
        • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
        Learn more
        More about LosartanSide effectsReviews & ratingsAlternativesFDA package insert
        More about CoregSide effectsReviews & ratingsAlternativesFDA package insert