Is Benzocaine gels (Orajel) Safe for Cats?
Why it’s a problem
Cats are extremely sensitive to benzocaine, which can convert their red blood cells into a form that cannot carry oxygen, causing methemoglobinemia that has been reported to be fatal. Even small amounts of gel, swallowed during grooming, may cause gray or blue gums, weakness, and collapse. Benzocaine products should never be used on or near a cat.
How to keep your pet safe
Keep Orajel and all numbing gels and sprays in closed medicine storage, and never apply any benzocaine product to a cat for teething, mouth sores, or itching. Feline mouth problems need a veterinary exam. Wash hands after use so residue cannot be groomed off.
Warning signs to watch for
Drooling, gray or bluish gums and lips, rapid or open-mouth breathing, weakness, wobbliness, collapse.
When to call the vet
Treat any suspected exposure as an immediate emergency — call a veterinarian or pet poison hotline even if your cat seems fine. Blue or gray gums mean go to emergency care without delay.
Common questions
My cat licked benzocaine gel — what do I do?
Call a veterinarian or pet poison hotline immediately. Cats can develop methemoglobinemia, in which blood cannot carry oxygen, and signs such as blue gums and weakness can follow even small exposures.
Can benzocaine be used on a teething kitten?
No — benzocaine products are never appropriate for cats of any age, and teething discomfort should be assessed by a veterinarian.
More medications hazards for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate or touched something concerning, contact your veterinarian or a pet poison hotline right away. In the US: Pet Poison Helpline (855) 764-7661, ASPCA Animal Poison Control (888) 426-4435 (fees may apply).