Compare Coreg vs. Losartan

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

Coreg
(carvedilol)

Cozaar
(losartan)

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.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.
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.79Coreg
Reviews for Coreg
53%
of people (All ages) say Coreg is worth it
46%
say it works well
18%
say it's a big hassle
406 reviews
Have you used Coreg (carvedilol)?
Worth itNot sureNot worth it
Reviews for Losartan
57%
-4% worse vs. Coreg
48%
-2% worse vs. Coreg
16%
-2% worse vs. Coreg
535 reviews
Have you used Cozaar (losartan)?
Worth itNot sureNot worth it
Side effects
CoregLosartan
  • Dizziness 13%
  • Fatigue 2%
  • High blood sugar 4%
  • Diarrhea 6%
  • Weight increase 3%
  • Nausea 4%
  • Abnormally slow heartbeat 8%
  • Low blood pressure 6%
  • Headache 1%
More Coreg side effects »
  • Upper respiratory infection 1%
  • Dizziness 1%
  • Back pain 1%
  • Nasal congestion 1%
  • Urinary tract infection 6%
  • Diarrhea 5%
  • Muscle weakness/fatiguea/fatigue 4%
  • Low red blood cells 3%
  • Low blood sugar 4%
  • Back pain 2%
More Losartan side effects »
How it works
CoregLosartan
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.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.
Type of medication
CoregLosartan
Prescription onlyPrescription only
Available as
CoregLosartan
  • Pill
  • Extended release
  • Pill
Used for
CoregLosartan
Risk factors for serious side effects
CoregLosartan
  • Abrupt discontinuation of Coreg (Carvedilol)
  • Congestive heart failure
  • Increasing the dose of Coreg (Carvedilol)
  • Diabetes
  • Major surgery requiring anesthesia
Detailed Coreg (carvedilol) risks & warnings »
  • Women of childbearing age
  • Concurrent liver disease
  • Current kidney problems
  • Medicine that increase potassium
  • Use of salt substitute
Detailed Cozaar (losartan) risks & warnings »
Pregnancy

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.

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.

Food
CoregLosartan
  • Take it with food.
  • You have to take Carvedilol with food.
No food related info.
Kidneys and liver
CoregLosartan
No kidneys and liver related info.
  • Requires routine blood tests to check kidney function.
  • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
Upsides and benefits
CoregLosartan
  • 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.
  • 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.
Downsides and risks
CoregLosartan
  • 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.
  • Requires a yearly blood test to see how the medicine is affecting your body.
  • Not safe to use if you're pregnant.
Tips from our pharmacists for people taking the medication
CoregLosartan
  • Take it with food.
  • 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.
  • 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.
  • 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.
Learn more
More about CoregSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Coreg (carvedilol)?
Worth itNot sureNot worth it
More about LosartanSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Cozaar (losartan)?
Worth itNot sureNot worth it