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U.S. Department of Health and Human Services

Safety

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Tenormin (atenolol) Tablets

Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER) – August 2011 

 

Summary View

 

WARNINGS

Major Surgery
  • Chronically administered beta-blocking therapy should not be routinely withdrawn prior to major surgery; however, the impaired ability of the heart to respond to reflex adrenergic stimuli may augment the risks of general anesthesia and surgical procedures