Pets can be exposed to fluorouracil by chewing on containers, typically tubes, of topical fluorouracil or by licking the location of your skin where you used the medication. FDA has not yet obtained any kind of records of fluorouracil poisoning in felines or other animals yet advises that this drug likewise be maintained away from all pet dogs for their safety and security. For even more useful suggestions, go to FDA’s webpage for pet owners on exactly how to securely keep medicines and our medication errors page, which has suggestions for how to avoid unintended medication direct exposures in pets.