You should not take this medication if you are allergic to carvedilol, or if you have asthma, bronchitis, emphysema, severe liver disease, or a serious heart condition such as heart block, sick sinus syndrome, or slow heart rate (unless you have a pacemaker).
If you need to have any type of surgery, you may need to temporarily stop using carvedilol. Be sure the surgeon knows ahead of time that you are using carvedilol.
Do not stop taking carvedilol without first talking to your doctor. Stopping suddenly may make your condition worse.
Carvedilol can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Avoid drinking alcohol within 2 hours before or after taking extended-release carvedilol (Coreg CR). Also avoid taking medicines or other products that might contain alcohol. Alcohol may cause the carvedilol in Coreg CR to be released too quickly into the body.
Carvedilol is only part of a complete program of treatment for hypertension that may also include diet, exercise, and weight control. Follow your diet, medication, and exercise routines very closely if you are being treated for hypertension.
Hypertension often has no symptoms, so you may not even feel that you have high blood pressure. Continue using this medicine as directed, even if you feel well. You may need to use blood pressure medication for the rest of your life.