Carvedilol is a prescription drug used to treat high blood pressure and heart failure. Learn about side effects, drug interactions, dosages, warnings, and more. Carvedilol is also used to prevent further worsening of congestive heart failure. It is also used to treat left ventricular dysfunction after a heart attack. Left ventricular dysfunction occurs when the left ventricle (the main pumping chamber of the heart) stiffens and enlarges and can cause the lungs to fill with blood. Find patient medical information for Carvedilol (Coreg, Coreg CR) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Carvedilol (Coreg) is used to treat heart failure and hypertension (high blood pressure). Includes carvedilol side effects, interactions and indications. Carvedilol (Coreg) is a beta blocker used to treat high blood pressure, heart failure, and certain heart problems after a heart attack. It comes as a tablet taken by mouth twice a day or an extended-release (ER) capsule (brand name Coreg CR) taken once a day. Common side effects include dizziness, tiredness, and diarrhea. What is this medication? CARVEDILOL (KAR ve dil ol) treats high blood pressure and heart failure. It may also be used to prevent further damage after a heart attack. It works by lowering your blood pressure and heart rate, making it easier for your heart to pump blood to the rest of your body. It belongs to a group of medications called beta blockers. Carvedilol, sold under the brand name Coreg among others, is a beta blocker medication, that may be prescribed for the treatment of high blood pressure (hypertension) and chronic heart failure with reduced ejection fraction (also known as HFrEF or systolic heart failure). [1][2] Beta-blockers as a collective medication class are not recommended. Carvedilol oral tablet (Coreg) is used to treat high blood pressure and heart failure. Find out how it works, its side effects, warnings, and more. Learn about the side effects of carvedilol, from common to rare, for consumers and healthcare professionals. View carvedilol information, including dose, uses, side-effects, pregnancy, breast feeding, contra-indications and monitoring requirements.