Report a suspected problem with an animal medicine or microchip

2. An animal's reaction to animal medicine

You can report when a medicine may not have worked, or could have made your animal unwell.

You’ll be asked for details of:

  • the medicine, including batch number and marketing authorisation number if known
  • the animal that was affected, for example the species, breed and age
  • when and how the medicine was first given to the animal
  • the symptoms

If you can’t report online

Download and fill in the form for reporting reactions in animals. Send it to the address on the form.