Is Terro Multi-Surface Ant Bait (T334) Safe to Use Around Dogs?

Terro Multi-Surface Ant Baits (T334) are not designed to be safe for direct access by dogs. While the main active ingredient, borax, is toxic mainly to insects, it can still be harmful to dogs if they chew, lick, or ingest the bait. Dogs are naturally curious and may be attracted to plastic bait stations. If a dog eats or damages the bait, they may experience stomach upset, vomiting, diarrhea, or—if a large amount is ingested—more serious health issues. The plastic casing is also a choking hazard.

When you have dogs as pets, only use Terro T334 ant baits in locations completely out of your dog’s reach, such as inside locked cabinets, behind appliances, or within secured bait stations pets cannot access. Never place baits in areas where your dog plays, sleeps, or eats. Always monitor your dog's behavior and check bait placements regularly.

If your dog does ingest any amount of the bait, contact your veterinarian or pet poison control immediately, even if there are no symptoms. Prevention and vigilance are the best ways to keep your dog safe when using any ant bait product at home.

Are Terro Multi-Surface Ant Baits (T334) Safe to Use Around Cats?

Terro Multi-Surface Ant Baits (T334) are not considered fully safe to use where cats can reach them. The active ingredient, Borax, is toxic to cats if eaten. Even though the bait is inside small plastic stations, a curious cat might chew, paw at, or move the bait, accidentally exposing themselves to the gel inside. Cats are especially sensitive to certain chemicals because they groom their fur and can ingest toxic substances stuck to their paws or face.

If a cat ingests Borax, it can experience drooling, vomiting, lethargy, and, in serious cases, kidney damage. Even if the risk is low, it’s not zero—especially with adventurous or playful cats. While Terro baits are sometimes described as pet-resistant, they are not pet-proof. The manufacturer and veterinarians advise always placing baits in locations that are completely inaccessible to pets.

For households with cats, the safest solution is to use alternative, pet-safe ant control methods or to ensure baits are placed in spots such as closed cupboards, behind appliances, or other areas where no cat can reach. If you suspect your cat has come into contact with or eaten the bait, contact your veterinarian immediately.

Safety of Multi-Surface Ant Baits (T334) by Terro Around Small Pets

Multi-Surface Ant Baits (T334) by Terro are not considered safe for small household pets such as hamsters, guinea pigs, gerbils, rats, or mice to be around. These pets are much more sensitive to chemicals than larger animals. Terro ant baits contain borax, a substance that can harm small animals if they ingest even tiny amounts. Because small pets love to chew, explore, and investigate with their mouths, it’s very risky to use these baits anywhere your pets might be able to reach—even if you think the bait is out of sight or in a “safe” location.

Small pets often have bedding and free-roam time both in and out of cages, and baits can be tracked back in on their feet or fur, risking accidental ingestion. Ant bait ingredients are mild for humans but much more toxic to tiny animals. Even exposure to the gel or vapors could upset their delicate systems. To protect your hamsters, guinea pigs, or similar pets, do not use these ant baits anywhere they live or play. Seek pest control solutions made specifically to be safe around small pets. If your pet is exposed, contact a vet immediately.