The most common side effects of carvedilol are dizziness, edema (fluid accumulation), decreased heart rate, diarrhea and postural hypotension (a rapid decrease in blood pressure when going from the seated to the standing position that causes light-headedness and/or fainting). Taking carvedilol with food minimizes the risk of postural hypotension.
Other common side effects of Carvedilol are irregular heart rhythm, and abnormalities of vision.
Wearers of contact lens should be aware of the possibility or reduced lacrimation.