Are allergic to Coreg, carvedilol, other beta blockers, or any inactive component used to make Coreg. 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.
Coreg Precautions and Warnings: A Summary
There are a number of situations in which Coreg should not be taken, as well as several precautions and warnings people should be aware of before taking the drug. However, it is possible that not all warnings and precautions were discussed in this article. Therefore, you should talk with your healthcare provider about any Coreg precautions and warnings that may apply to you.