Is Permethrin (Flea Treatment) Toxic to Dogs?

Permethrin is a common ingredient in DOG flea treatments that is extremely toxic to cats. It is the #1 cause of feline poisoning from flea products. Even residue from a treated dog can poison a cat that grooms it.

Quick Answer

Yes, permethrin (flea treatment) is toxic to dogs. LETHAL to cats — safe for dogs but NEVER cats. Permethrin is a common ingredient in DOG flea treatments that is extremely toxic to cats. It is the #1 cause of feline poisoning from flea products. Even residue from a treated dog can poison a cat that grooms it. Watch for symptoms like muscle tremors and twitching & seizures.

Emergency

If your dog has ingested permethrin (flea treatment), contact your vet or ASPCA Poison Control (888-426-4435) immediately.

🐕 Species-Specific Note

Permethrin is safe for dogs and is a common active ingredient in flea and tick treatments. Follow label directions.

Symptoms of Permethrin (Flea Treatment) Poisoning

Muscle tremors and twitching
Seizures
Hypersalivation
Difficulty breathing
Death without treatment

Typical Timeline

Symptoms typically appear within 1-12 hours of exposure.

Treatment Options

EMERGENCY VET immediately for cats
Wash off any product with warm water and dish soap
Anti-seizure medication
IV fluids and supportive care
Muscle relaxants (methocarbamol)

Prevention Tips

NEVER use dog flea products on cats
Check ALL flea product labels for permethrin
Separate treated dogs from cats until product is dry
Use only cat-specific flea treatments

Other Toxins Dangerous to Dogss

🐱 Cats version →🐰 Rabbits version →🐦 Birds version →🐹 Hamsters version →

Frequently Asked Questions

Is permethrin (flea treatment) toxic to dogs?▼

LETHAL to cats — safe for dogs but NEVER cats. Permethrin is a common ingredient in DOG flea treatments that is extremely toxic to cats. It is the #1 cause of feline poisoning from flea products. Even residue from a treated dog can poison a cat that grooms it.

What happens if my dog is exposed to permethrin (flea treatment)?▼

Symptoms include: Muscle tremors and twitching; Seizures; Hypersalivation. Symptoms typically appear within 1-12 hours of exposure.

What should I do if my dog ingested permethrin (flea treatment)?▼

EMERGENCY VET immediately for cats. Wash off any product with warm water and dish soap. Anti-seizure medication.

How can I protect my dog from permethrin (flea treatment)?▼

NEVER use dog flea products on cats. Check ALL flea product labels for permethrin. Separate treated dogs from cats until product is dry. Use only cat-specific flea treatments.