This Medicine Interaction Checker provides information regarding potential interactions with Paxlovid and the selected medicine. The information is from the Paxlovid Summary of Product Characteristics. It is meant to be used as a guide and not considered a comprehensive list of all possible medicines that may interact. The healthcare provider should consult appropriate references for comprehensive information. If you do not see your medicine listed, or have a question that cannot be answered by using this tool, please search here or contact us.

Please note: This drug interaction tool provides information regarding potential drug interactions ONLY with Paxlovid and each selected product(s). The results DO NOT evaluate the potential for drug interaction between Product 2 through Product 5 or any combination thereof.

Drug Interaction Resources

Paxlovid Prescribing Information available here and Emergency Use Authorization Fact Sheet for Healthcare Providers available here .

Additional Resources*:

If you have a question that cannot be answered by using the above resources, please submit an inquiry or call us at (800) 438-1985.

*The information made available through the above links relate only to known or suspected effects of interacting medications and is based on relevant data in the public domain. Healthcare providers must exercise their own judgment. The nature of drug interaction information is that it is constantly evolving because of ongoing research and clinical experience and is often subject to interpretation. No clinical advice is given or implied and healthcare providers must exercise their own judgement in relation to the risks and benefits of combining medications, which depend on factors beyond pharmacokinetic interactions between two medications. Pfizer shall have no liability to any person or entity with regard to claims, loss, or damage caused, or alleged to be caused, directly or indirectly, by the use of other resources.

Links to all third-party websites are provided as a convenience and do not imply an endorsement or recommendation by Pfizer. Pfizer accepts no responsibility or liability for the content or services of other websites. We encourage you to review the policies and terms of all websites you may choose to visit.

In the event of a suspected adverse event or side effect with no associated medical information enquiry, please report via www.pfizersafetyreporting.com/

*If you have a medical information enquiry including those with associated adverse events, contact Medical Information. 
Adverse events should be reported. Reporting forms and information can be found at https://yellowcard.mhra.gov.uk/ or search for MHRA Yellow Card in the Google Play or Apple App Store.

If you are concerned about an adverse event it should be reported on a Yellow Card. Reporting forms and information can be found at https://coronavirus-yellowcard.mhra.gov.uk or search for MHRA Yellow Card in the Google Play or Apple App Store. When reporting please include the vaccine brand.


Alternatively, adverse events of concern in association with the COVID-19 mRNA vaccines can be reported to Pfizer Medical Information on 01304 616161 or via www.pfizersafetyreporting.com

Please do not report the same adverse event(s) to both systems as all reports will be shared between Pfizer and MHRA (in an anonymised form) and dual reporting will create unnecessary duplicates.