Advocate for Cats

Advocate for cats is a topical solution designed to provide broad-spectrum protection against fleas, ear mites, intestinal worms, and heartworms. With its convenient monthly application, Advocate ensures comprehensive parasite control, safeguarding the health and well-being of your beloved feline friend.

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This product has multiple variants. The options may be chosen on the product page
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This product has multiple variants. The options may be chosen on the product page

Advocate – Flea, Heartworm & Intestinal Worm Treatment for Cats

Advocate™ is a high-end, monthly, spot-on treatment that provides comprehensive protection for cats against various parasitic infections. This easy-to-apply solution quickly kills fleas on contact within 1 hour, preventing reinfestation by stopping bites within 3-5 minutes. Advocate™ effectively treats and controls heartworms, roundworms, hookworms, ear mites, feline mange mites, and the two lungworm species that cause severe lung damage. It also kills larval flea stages in the cat’s surroundings, reducing flea allergy dermatitis. Safe for kittens from 9 weeks of age with no minimum weight requirement, Advocate™ ensures continuous protection between doses, keeping your cat and your family safe from the harmful effects of parasitic infections.

How Does It Work?

Advocate™ works through its active ingredients, imidacloprid and moxidectin, which target and eliminate a broad spectrum of parasites. When applied to the cat’s skin, the solution spreads over the body surface and is absorbed into the skin layers, releasing the active ingredients.

  • Flea Control: Imidacloprid, an insect neurotoxin, disrupts the nervous system of fleas, causing paralysis and death. This ingredient kills fleas on contact, preventing them from biting and laying eggs.
  • Heartworm Prevention: Moxidectin, an anthelmintic agent, prevents heartworm disease by killing larvae before they can mature and migrate to the heart and lungs.
  • Intestinal Worms: Moxidectin also targets and eliminates immature and adult stages of roundworms and hookworms, preventing infections and reducing the risk of transmission to humans.
  • Lungworm Protection: Advocate™ is the only product effective against both species of lungworms that infect cats, preventing lung damage and related respiratory issues.
  • Mite Control: The treatment also eradicates ear mites and feline mange mites, which can cause discomfort and skin issues.

By maintaining a steady state of these active ingredients with regular monthly use, Advocate™ provides continuous, broad-spectrum protection against various parasites, ensuring your cat remains healthy and free from infestations.


  • Comprehensive Parasite Treatment: Targets both external and internal parasites in cats.
  • Flea Infestation Control: Effectively eliminates flea infestations.
  • Mite Management: Controls ear mites and feline mange mites.
  • Heartworm Prevention: Prevents heartworm disease caused by Dirofilaria immitis.
  • Intestinal Worm Treatment: Treats and controls hookworm infections (Ancylostoma tubaeforme) and roundworm infections (Toxocara cati) at all life stages.
  • Easy Monthly Application: Simple to apply as a monthly topical solution.
  • Safe for Young Cats: Suitable for kittens 9 weeks and older with no minimum weight requirement.
  • Broad-Spectrum Protection: Ensures continuous protection against a variety of parasites


How long does Advocate take to work on cats?

Advocate starts working quickly. It begins killing fleas within 12 hours of application. It provides sustained protection against various internal and external parasites for a full month.

What are the active ingredients in Advocate?

The active ingredients in Advocate™ are:

  • Imidacloprid: This insect neurotoxin effectively targets and eliminates fleas by disrupting their nervous system, causing paralysis and death.
  • Moxidectin: This anthelmintic agent provides broad-spectrum protection against various internal parasites, including heartworms, roundworms, hookworms, and lungworms.

How often is Advocate applied?

Advocate™ is applied once a month. Regular monthly application ensures continuous protection against a wide range of parasites.

Can I use Advocate all year-round?

Yes, Advocate™ can and should be used all year-round. Continuous monthly application provides consistent protection against fleas, heartworms, intestinal worms, and other parasites, ensuring your cat remains healthy and parasite-free throughout the year.