Report a Side Effect

Humans vary in their biological reactions to medicinal products. This is why not all adverse reactions (side effects) associated with the use of medicinal products can be detected during clinical development, not even by the most comprehensive clinical trials.

For Bayer, continued patient and drug safety takes centre stage, beyond mere compliance with Canadian regulations. To enable Bayer to provide up-to-date safety information on Bayer products, your support is pivotal, whether you are a customer, patient or health care professional.

Reporting Side Effects

If you would like to report a side effect experienced with a Bayer product, you have several options. You may:

  1. Contact your health care professional (e.g. physician or pharmacist)
  2. Report the side effect directly to Health Canada
    1. Online
    2. Or toll-free by calling 1-866-234-2345.
  3. Side effects can also be reported to Bayer Inc. by clicking on the link below:
    WebAE Homepage

Note: You must be 18 years of age or older to use WebAE. If not, please report your side effect experience with a Bayer product by calling 1-800-265-7382.