Our scientific content is evidence-based, scientifically balanced and non-promotional. It undergoes rigorous internal medical review and is updated regularly to reflect new information.
Search Tip: To guarantee best results, use exact words rather than broad terms.
If you did not find what you are looking for:
Search Tip: To guarantee best results, include a drug name, and use exact words rather than broad terms.
See a list of all Pfizer medications.
If you did not find what you are looking for:
*Contact Medical Information. 9AM-5PM ET Monday to Friday; excluding holidays.
Submit a medical question for Pfizer prescription products.
Contact Pfizer Safety to report an adverse event, side effect or concern about the quality of a Pfizer product:
1 866 723-7111.
To report an adverse event related to the Pfizer-BioNTech COVID-19 Vaccine, and you are not part of a clinical trial* for this product, click the link below to submit your information:
*If you are involved in a clinical trial for this product, adverse events should be reported to your coordinating study site.
You may also contact the Canada Vigilance Program directly to report adverse events or product quality concerns at 1-866-234-2345 or www.healthcanada.gc.ca/medeffect.