Adverse Event Reporting

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Physicians, other health care professionals and patients are encouraged to voluntarily report adverse events involving drugs or medical devices. Use this information to make 
a report.

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Report an adverse event (or side effect)

If you experience an adverse event or side effect taking a Lilly medicine, talk to your doctor or other health care professional. This includes any possible side effects not listed in the package leaflet. By reporting side effects, you can help provide more information on the safety of our medicines.

Please do not use this website to report side effects or complaints about Lilly products.

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Report a concern

To report a side effect or product complaint with a Lilly product,
please call Lilly Canada’s Customer Response Centre at
1-888-545-5972
(Monday to Friday, 9 a.m. to 8 p.m. Eastern Time, excluding holidays).
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Contact us

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Call us

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Our customer response centre is here to help
1-888-545-5972
Call us
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Email us

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Mail a written report to the attention of Lilly Canada Patient Safety.
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Report

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Report your experience directly to Health Canada online through the MedEffect Canada website or by calling 1-866-234-2345.
MedEffect Canada
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Patient safety

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Learn more about Patient Safety
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Contact us

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Learn more
PP-LLY-CA-0012 04/2026 © 2026, Eli Lilly and Company. All rights reserved.
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