Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 12/8/2025

Mounjaro Administration and Safety Considerations

Critical Safety Considerations

  • The American College of Surgeons recommends discontinuing Mounjaro at least 3 days before planned surgery to prevent postoperative ketoacidosis, similar to other incretin-based therapies 1
  • The American Society of Anesthesiologists suggests monitoring for signs of delayed gastric emptying, particularly in the perioperative setting 2

Use with Other Diabetes Medications

  • The Mayo Clinic recommends continuing metformin unless contraindicated when starting Mounjaro 3
  • The American Diabetes Association suggests considering reducing or stopping sulfonylureas to minimize hypoglycemia risk 4

Renal Considerations

  • The National Kidney Foundation states that no dosage adjustments are required for patients with kidney disease, and Mounjaro can be used in patients with eGFR ≥45 mL/min/1.73 m² without dose modification 5, 3