Hartz First Defense for Cats

Protect your cat from dangerous flea- and tick-borne disease, such as Lyme disease, with Hartz First Defense topical treatment. Simply apply Hartz First Defense to your cat's skin once a month to kill fleas, ticks, and chewing lice. You'll also prevent and control re-infestation of these parasites for up to 30 days.

Hartz First Defense contains the active ingredient Fipronil, the same active ingredient in Frontline Top Spot. Fipronil is an adulticide that kills adult parasites (fleas, ticks, and chewing lice) by damaging their nervous system, which causes eventual paralysis and death.

Fipronil spreads with your pet's natural body oils over the entire body, killing 98-100% of the infesting fleas or ticks within 12-48 hours. Fipronil also collects in your pet's hair follicles, from which it slowly releases onto skin and hair for up to 1 month.

Hartz First Defense works quickly and lasts long. It is waterproof to stay on through baths and water play.

For cats 8 weeks of age and older.

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Please click on "More Information" for ingredients, usage instructions, and additional product details.

It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Use only on cats or kittens 8 weeks of age or older. Do not use on rabbits, dogs, puppies, or other animals. Do not exceed recommended dosage amount for cats. Do not allow your cat to ingest this product. This product can be used on cats and kittens 8 weeks or older, including breeding, pregnant, and lactating cats.

1. Remove one applicator tube from the package and hold in an upright position pointed away from your face.
2. Twist dispensing tip clockwise about ½ turn while pushing down to break the tube's seal. Do not remove the dispensing tip.
3. Position the dispensing tip on the cat's back between the shoulder blades. Use the dispensing tip of the tube to part the cat's hair so that the product will be applied at skin level. Squeeze applicator, applying entire contents in a single spot on the animal's skin. Separate the treated cat from other pets for 24 hours after treatment has been applied.
4. Repeat every month.

Precautionary statements
Keep out of reach of children.
Hazards to humans: Harmful if swallowed. Causes eye irritation. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco, or using the toilet. Hazards to domestic animals: For external use only. Do not use on kittens under 8 weeks of age. Sensitivities may occur after using any pesticide product for pets. If signs of sensitivity occur, bathe your pet with mild soap and rinse with large amounts of water. If signs continue, consult a veterinarian immediately. Pets may experience some temporary irritation at the site of product application. Consult a veterinarian before using this product on debilitated, aged, pregnant, or nursing animals.

Do not use or store near heat or open flame.

Storage and disposal

Do not contaminate water, food, or feed by storage and disposal.
Keep this product in its tightly closed original container when not in use. Store in a cool, dry, preferably locked area inaccessible to children and animals.
Wastes resulting from the use of this product may be disposed of on site or at an approved waste disposal facility.
Non-refillable container. Do not reuse or refill this container. If empty, offer for recycling if available. If partly filled, call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.