Get emergency medical help if you have signs of an allergic reaction to Coreg: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
a light-headed feeling, like you might pass out;
slow or uneven heartbeats;
cold feeling or numbness in your fingers or toes;
chest pain, dry cough, wheezing, chest tightness;
heart problems - swelling, rapid weight gain, feeling short of breath; or
high blood sugar - increased thirst, increased urination, dry mouth, fruity breath odor.
Common Coreg side effects may include:
dizziness;
slow heartbeats;
diarrhea;
weight gain;
dry eyes; or
problems wearing contact lenses.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Coreg side effects (more detail)
