Reported Problems With Carvedilol CR

Common Side Effects

Most of the information about potential carvedilol CR side effects comes from studies of the short-acting version (carvedilol). Carvedilol has been studied extensively in people with high blood pressure, congestive heart failure, and a recent heart attack. In these clinical studies, side effects are always documented and compared to those that occurred in a similar group of people not taking the medicine.
Congestive Heart Failure
Based on information from carvedilol studies, the most common side effects of carvedilol CR seen in people with mild, moderate, or severe congestive heart failure or following a heart attack include:
  • Dizziness -- in up to 32 percent of people
  • Fatigue -- up to 24 percent
  • Low blood pressure -- up to 14 percent
  • Diarrhea -- up to 12 percent
  • High blood sugar (hyperglycemia) -- up to 12 percent (see Coreg and Blood Sugar)
  • Increase in weight -- up to 12 percent (see Coreg and Weight Gain)
  • Slow heart rate -- up to 10 percent
  • Nausea -- up to 9 percent.
Other common side effects of short-acting carvedilol (occurring in more than 3 percent of people with congestive heart failure or those following a heart attack) include, but are not limited to:
  • Swelling of the arms, legs, hands, or feet
  • Shortness of breath
  • Vomiting
  • Fainting (syncope)
  • Changes in vision
  • Anemia.
High Blood Pressure
Unlike for other uses, studies have been done with carvedilol CR (not just carvedilol) for the treatment of high blood pressure. The most common carvedilol CR side effects seen in people with high blood pressure include:
  • Common cold symptoms (such as a stuffy or runny nose) -- in up to 4 percent of people
  • Dizziness -- up to 2 percent
  • Nausea -- up to 2 percent
  • Swelling of the hands or feet -- up to 2 percent.
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Carvedilol CR Drug Information

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