Are allergic to carvedilol, Coreg, any inactive component used to make the medicine, or other beta blockers. Your healthcare provider or pharmacist has a list of inactive ingredients.
Have a slow heartbeat (less than 45 beats a minute).
Have certain types of irregular heart rhythms (specifically second or third degree heart block).
Have severe heart failure that requires IV medicines.
Precautions and Warnings With Carvedilol: A Summary
There are a number of situations in which carvedilol should not be taken, as well as several precautions and warnings with carvedilol people should be aware of before taking the drug. However, it is possible that not all the warnings or precautions were discussed in this article. Therefore, you should talk with your healthcare provider about any that may apply to you.