Autoimmune Biologics

Dental Considerations for Patients Taking Rituximab (anti-CD20)

Proceed with precautions & correct timing (rituximab)

Patient on rituximab. Invasive care can usually proceed with infection vigilance, correct drug timing, and rheumatology coordination for major surgery.

Emergency vs routine management

Clinical precautions

• • Meticulous infection control; treat oral infection promptly
• • Rituximab profoundly depletes B-cells for months — heightened, prolonged infection risk; coordinate closely.
• • Plan invasive procedures at the drug trough; discuss withholding for major surgery with rheumatology
• • Antibiotic prophylaxis is NOT routinely required for immunosuppression alone — decide case-by-case with the treating physician for invasive/surgical procedures. If indicated: Amoxicillin 2 g orally 1 hour before (adult); if penicillin-allergic, Clindamycin 600 mg or Azithromycin/Clarithromycin 500 mg orally 1 hour before.

Information & tests to request

• • Absolute neutrophil count — ANC (x10⁹/L) — rituximab raises infection risk and can lower blood counts. Check an FBC; proceed with invasive care when ANC ≥1.0 (ideally ≥2.0).
• • Days since last biologic dose — Plan invasive surgery at the drug trough (just before the next dose). For major surgery, coordinate with rheumatology about withholding a dose to reduce infection risk.
• • Daily prednisolone-equivalent dose (mg) — This patient's condition/therapy is commonly associated with long-term corticosteroids, which can suppress the adrenal response to surgical stress. Enter the daily dose (0 if none) to determine whether supplementary stress-dose cover is needed.

At a glance by procedure

Initial assessment before lab results or timing details are entered.

References

1. Autoimmune biologics — dental management (rheumatology coordination)
2. Goodman SM et al. 2022 ACR/AAHKS Guideline for Perioperative Management of Antirheumatic Medication. Arthritis Care Res 2022;74:1399–1408

Related guides

This guide supports — and does not replace — professional clinical judgment. Always consider the individual patient and consult the treating physician when indicated.