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U.S. Department of Health and Human Services


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Resources for You

Toprol XL (metoprolol succinate) 25 mg, 50 mg, 100 mg, and 200 mg Extended Release Tablets February 2009

Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER) -- February 2009


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

Summary of Changes to Contraindications and Warnings


  • Pheochromocytoma


  • Pheochromocytoma
    • If Toprol-XL is used in the setting of pheochromocytoma, it should be given in combination with an alpha blocker, and only after the alpha blocker has been initiated....