Is Precor IGR Concentrate Safe to Use Around Dogs?

Precor IGR Concentrate, made by Zoecon, is generally considered safe for use around dogs when you follow all label directions and safety instructions closely. The active ingredient, methoprene, is an insect growth regulator (IGR). That means it targets the life cycle of fleas by stopping their eggs and young from developing, but does not kill fleas directly. Methoprene has low toxicity to mammals, including dogs, compared to other pesticides.

However, dogs should not be present during application. To avoid any chance of irritation, ingestion, or accidental exposure, wait until treated areas are fully dry before allowing your dog back in. Most reactions in dogs are from direct contact with still-wet product or licking wet surfaces. Once it’s dry, risk is extremely low. Always store any leftover product out of reach of pets, and never apply Precor IGR directly to your dog’s body or their food and water.

In summary, Precor IGR Concentrate can be safely used in a home with dogs as long as you keep your dog away from wet, recently treated areas and use the product exactly as directed by the manufacturer.

Safety of Precor IGR Concentrate Use Around Cats

Precor IGR Concentrate by Zoecon can be used safely around cats—if important precautions are followed. The main ingredient, methoprene, is an insect growth regulator (IGR) that targets flea eggs and larvae but is generally considered safe for mammals, including cats, when applied correctly. However, like most pest control solutions, cats should never come into direct contact with the wet spray or freshly treated surfaces. Cats are sensitive to many chemicals and may groom themselves, licking chemical residues from their fur or paws. Until the treated area is completely dry, cats should be kept out of the room or off treated floors, carpets, and furniture.

After the product dries, it poses minimal risk, as methoprene does not release harmful fumes and is not absorbed through a cat’s skin in dangerous amounts. Still, always follow professional safety advice: vent rooms well, keep cats away during application, let surfaces dry fully, and consult your veterinarian if your cat has special health concerns. Used this way, Precor IGR offers effective flea control without threatening your feline companion’s health.

Is Precor IGR Concentrate Safe for Use Around Small Pets (Hamsters, Guinea Pigs, etc)?

Precor IGR Concentrate is not considered safe for direct use in areas with small pets like hamsters, guinea pigs, mice, or rats. While the product targets fleas by disrupting their growth cycle, its safety data is primarily based on use around dogs and cats, not small mammals. Small animals have more sensitive respiratory and skin systems; even low-level exposure to pesticide residues or vapors can cause serious health problems, including breathing difficulties, skin irritation, or toxic reactions.

These pets often live close to the ground, burrow, or nest in the bedding where sprays can settle and linger. Since they groom themselves by licking their fur and surroundings, they are at higher risk for accidental ingestion of chemicals left behind. In addition, the housing and ventilation for these species are usually limited, so chemicals can stay in their environment longer and build up to harmful levels. Because Precor IGR is not labeled for use around these kinds of pets and their safety cannot be guaranteed, it’s best to avoid using this product anywhere they live or play. Consult an exotic animal veterinarian for safe alternatives.