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U.S. Department of Health and Human Services

Safety

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Resources for You

Coreg CR (carvedilol phosphate) Extended-Release Capsules December 2008

Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER) -- December 2008

 

The detailed view includes drug products with safety labeling changes to the BOXED WARNING, CONTRAINDICATIONS, WARNINGS, PRECAUTIONS, ADVERSE REACTIONS, or PATIENT PACKAGE INSERT/MEDICATION GUIDE sections. Deletions or editorial revisions made to these sections are not included in this summary. Read about the new physician labeling format.


 

Summary View

Sections Modified

DRUG INTERACTIONS (7.6)

  • Amiodarone (new)
    • .....The concomitant administration of amiodarone or other CYP2C9 inhibitors such as fluconazole with Coreg may enhance the β-blocking properties of carvedilol resulting in further slowing of the heart rate or cardiac conduction. Patients should be observed for signs of bradycardia or heart block, particularly when one agent is added to pre-existing treatment with the other.