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Drugs Information Healthline

Carvedilol, oral tablet

Highlights for carvedilol

  1. Carvedilol oral tablet is available as a generic drug and a brand-name drug. Brand-name: Coreg.
  2. Carvedilol also comes as an oral extended-release capsule.
  3. Carvedilol is a beta-blocker. It’s used to treat high blood pressure, heart failure, and heart function problems after a heart attack.

Important warnings

FDA warning: Don’t stop this drug suddenly

  • This drug has a black box warning. This is the most serious warning from the Food and Drug Administration (FDA). A black box warning alerts doctors and patients to potentially dangerous effects.
  • Don’t stop taking this drug without speaking to your doctor first. Stopping carvedilol suddenly can cause changes in your heart rhythm, worsened chest pain, or a heart attack. If you will be stopping this drug, your doctor will slowly lower your dosage over 1–2 weeks to help prevent these effects. If your chest pain or heart problems get worse after stopping this drug, your doctor may have you start taking it again for a short time.
  • Sudden drug stoppage warning: Don’t stop taking this drug without talking to your doctor first. Stopping carvedilol suddenly can cause changes in your heart rhythm, worsened chest pain, or a heart attack. If you will be stopping this drug, your doctor will slowly lower your dosage over one to two weeks to help prevent these effects. If your chest pain or heart problems get worse after stopping this drug, your doctor may have you start taking it again for a short time.
  • Low heart rate warning: Carvedilol can decrease your heart rate. If your heart rate drops below 55 beats per minute, your doctor may decrease your dosage of this drug.
  • Low blood pressure warning: Carvedilol can cause dangerously low blood pressure, which may cause you to lose consciousness. This risk is highest after your first doses and during dosing increases. To decrease the risk of this happening, take carvedilol with food. Your doctor may start you on a low dosage and slowly increase it.
  • Diabetes warning: Carvedilol can cause low blood sugar levels (hypoglycemia) and delay how long it takes your blood sugar levels to return to normal. It may also mask the signs of low blood sugar levels. Use this drug with caution if you have diabetes, especially if you take insulin or other diabetes drugs that can cause low blood sugar.

What is Carvedilol?

Carvedilol oral tablet is a prescription drug that’s available as the brand-name drug Coreg. It’s also available as a generic drug. Generic drugs usually cost less. In some cases, a generic drug may not be available in every strength or form as a brand-name version.

Carvedilol also comes as an extended-release oral capsule.

Why it’s used

Carvedilol oral tablet is used to treat high blood pressure. It can also improve how well your heart works if you’ve had a heart attack or if you have heart failure.

This drug is approved to treat:

  • heart failure
  • left ventricular dysfunction (a heart function problem) after a heart attack
  • high blood pressure

How it works

Carvedilol belongs to a class of drugs called beta-blockers. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.

It isn’t fully understood how carvedilol works to treat high blood pressure or improve heart function. However, it is known that carvedilol improves the workload of your heart, exercise-induced high heart rate, and high heart rate upon standing. It also widens your blood vessels, which helps to decrease your blood pressure.

Carvedilol side effects

Carvedilol oral tablet can cause several types of side effects, including drowsiness. Don’t drive, use machinery, or perform activities that require alertness until you know how this drug affects you.

More common side effects

The more common side effects that can occur with carvedilol oral tablet include:
  • dizziness
  • unusual tiredness
  • low blood pressure
  • diarrhea
  • high blood sugar
  • lack of energy or weakness
  • slower heart rate
  • weight gain
  • changes in sex drive or performance
  • dry eyes
  • dry, itchy skin
  • headache
  • nausea
If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist.
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