Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 12/12/2025

Antibiotic Prophylaxis for Patients with Rheumatoid Arthritis Undergoing Dental or Surgical Procedures

Risk Stratification and Prophylaxis

  • The American College of Cardiology recommends antibiotic prophylaxis for patients with prosthetic cardiac valves, previous infective endocarditis, or specific congenital heart disease, regardless of RA status, with amoxicillin 2g orally 1 hour before procedure 1, 2
  • The American Academy of Orthopedic Surgeons identifies RA as a high-risk condition warranting prophylaxis in the context of prosthetic joints, particularly when combined with immunosuppression such as biologic DMARDs 3
  • For RA patients meeting high-risk criteria, prescribe amoxicillin 2g orally as a single dose, 1 hour before procedure, or azithromycin for penicillin allergy 3
  • Prophylaxis applies only to invasive procedures, such as extractions, periodontal surgery, or implants 1, 2

Management of RA Medications

  • The American College of Rheumatology recommends continuing conventional DMARDs, such as methotrexate, leflunomide, hydroxychloroquine, and sulfasalazine, without interruption through dental procedures, as evidence shows this decreases infection risk (RR 0.39) 5, 4
  • For biologic DMARDs, continue for routine cleanings, fillings, and simple procedures, but consider timing major oral surgery at the end of the dosing cycle when drug levels are lowest 4
  • Continue current daily dose of corticosteroids without stress-dose supplementation 4

Surgical Procedures

  • For elective orthopedic surgery, withhold all biologic agents prior to surgery and plan surgery at the end of the dosing cycle, while continuing conventional DMARDs 5, 6
  • Resume biologics once the wound shows healing, sutures are removed, and no infection is present 4

Critical Pitfalls to Avoid

  • Only a single pre-procedure dose of antibiotic is indicated when prophylaxis is needed, and post-procedure antibiotics are not recommended for prophylaxis 3, 2
  • Risk stratification is essential, and most RA patients do not require prophylaxis, with the combination of prosthetic joint and immunosuppression creating high risk, not RA diagnosis alone 3
  • Stopping conventional DMARDs perioperatively increases flare risk without reducing infection risk 5, 4