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Email us at [email protected] to report a mistake, suggest a new calculator or ask about the site. We read every message and usually reply within a few days.

We can't give advice about a specific pet. If your pet is sick or may have eaten something toxic, call your vet or an emergency vet now. In the US you can also call the ASPCA Animal Poison Control Center at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661.