Home›Rituximab›Rituximab + Certolizumab Pegol

Does Rituximab Interact with Certolizumab Pegol?

CDI records a major classification for Rituximab and Certolizumab Pegol. The stored summary is: ( 7.3 ) 7.1 Use with Anakinra, Abatacept, Rituximab, and Natalizumab An increased risk of serious infections has been seen in clinical studies of other TNF-blocking agents used in combination with anakinra or abatacept, with no added benefit. Formal drug interaction studies have not been performed with rituximab or natalizumab. Therefore, the use of CIMZIA in combination with anakinra, abatacept, rituximab, or natalizumab is not recommended [see Warnings and Precautions (5.8) ] . Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.

Severity
Major
Rituximab Class
CD20-directed Cytolytic Antibody
Certolizumab Pegol Class
Tumor Necrosis Factor Blocker
Management
Close medical supervision required
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Rituximab and your doctor is considering prescribing Certolizumab Pegol (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask how frequently you should be monitored while these are co-prescribed
  • Ask whether any dosage adjustments are needed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Rituximab(Rituxan Hycela)+💊 Certolizumab Pegol(Cimzia)

Severity & Interaction Details

⚠️
major
Use with caution — major interaction
Serious risk of clinically significant harm. Generally avoid; if used, monitor closely.
Severity scale
MinorContra
On record
Yes
Drug A class
CD20-directed Cytolytic Antibody
Drug B class
Tumor Necrosis Factor Blocker
Source
FDA drug label - certolizumab pegol

What this means in plain English

( 7.3 ) 7.1 Use with Anakinra, Abatacept, Rituximab, and Natalizumab An increased risk of serious infections has been seen in clinical studies of other TNF-blocking agents used in combination with anakinra or abatacept, with no added benefit. Formal drug interaction studies have not been performed with rituximab or natalizumab. Therefore, the use of CIMZIA in combination with anakinra, abatacept, rituximab, or natalizumab is not recommended [see Warnings and Precautions (5.8) ] .

About Rituximab and Certolizumab Pegol

Rituximab is a CD20-directed Cytolytic Antibody, while Certolizumab Pegol is a Tumor Necrosis Factor Blocker. You may recognize them by the brand names Rituxan Hycela and Cimzia. Both Rituximab and Certolizumab Pegol carry an FDA boxed warning — the agency's most serious safety designation.

Source and Limitations

This record was produced by automated extraction from drug-label information, including AI processing. The summary and mechanism are not verbatim FDA quotations. The drug profiles below may describe different formulations from the source label. Confirm the exact product and route with your pharmacist. This page does not establish independent clinical review.

📖 Source: FDA drug label - certolizumab pegol

Share this result:

WhatsAppText / SMSEmail
Also share on:XFacebook
Add more drugs
Check Rituximab and Certolizumab Pegol against your full medication list

Most patients take more than two medications. CDI checks every pair across up to 20 drugs simultaneously — including OTCs and common supplements.

Add more drugs →
How this information is prepared: CDI uses automated extraction, including AI, to summarize drug labeling from openFDA and includes separately identified curated-reference records. RxNorm helps identify medications; it does not verify interaction claims. Extracted summaries and CDI severity classifications can contain errors and are not verbatim FDA statements or independent clinical review. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.

CDI: source-linked explanations