Senergy (selamectin) Topical for Cats

Pet Weight: 0 - 5 Lbs
Dosage Quantity: 3 Months
Sale price$42.49


SENERGY™ (Selamectin) Topical for Cats is formulated to protect cats and kittens against parasites. It is the top veterinarian-recommended parasiticide for kittens and cats, providing protection against ticks, heartworms, adult fleas, sarcoptic mange, ear mites, and flea infestations year-round at an affordable price.

Who is Senergy (selamectin) Topical for Cats for?

Made for use in kittens (ages 8 weeks and up) and cats.

Who is Senergy (selamectin) Topical for Cats for?

Made for use in kittens (ages 8 weeks and up) and cats.

How does Senergy (selamectin) Topical for Cats work?

Selamectin, which is SENERGY™'s active ingredient, is in a drug class called macrocyclic lactone compounds. Compounds like selamectin work for a full month to control and treat sarcoptic mange, prevent hatching of flea eggs, control ticks, kill adult fleas, prevent heartworms from developing, and control ear mites.



Active ingredient(s):

Active Ingredient: Selamectin

How is Senergy (selamectin) Topical for Cats sold?

Sold as a 3-dose, 3-month supply based on the weight of your cat:

  • Up to 5 Pounds: Mauve
  • 5.1 to 15 Pounds: Blue
  • 15.1 to 22 Pounds: Taupe

What are the side effects of Senergy (selamectin) Topical for Cats?

Potential adverse reactions include:

  • Tachypnea
  • Erythema
  • Death
  • Loose stool
  • Diarrhea (with or without blood)
  • Seizures
  • Anorexia
  • Lethargy
  • Transient alopecia at the application site
  • Ataxia
  • Vomiting
  • Urticaria
  • Pruritus
  • Muscle tremors
  • Salivation
  • Fever

What special precautions are there?

  • Do not use in humans.
  • Cats should receive a heartworm test prior to use. Cats with an existing infection should receive treatment before starting this medication.
  • Never use in underweight, debilitated, or sick pets.
  • Human reactions have included skin redness, itching, and hives.
  • No hypersensitivity reactions have been reported in cats with a patent heartworm infection when given 3 times recommended selamectin dosages. No higher dose was studied.
  • In case of eye contact, use large amounts of water to flush the eyes.
  • To obtain further information about side effects reporting, visit or call 1-888-FDA-VETS.
  • This product does not kill D. immitis in the adult stage.
  • This product is flammable and should be kept away from ignition sources, open flame, sparks, and heat.
  • Keep out of reach of animals and children.
  • If you have had a previous hypersensitivity reaction to this product, use with caution or consult a physician for advice before handling.
  • Do not use on cats under 8 weeks old.
  • Although circulating microfilariae could decrease after use, this product is not formulated for clearance against microfilariae.
  • This product can irritate the eyes or skin of humans. Thoroughly wash your hands after handling.

What to do if overdose?

In case of overdose, seek treatment at the nearest emergency animal hospital.

How can I store Senergy (selamectin) Topical for Cats?

This product should be stored in a cool location (under 77° F or 25° C).

Helpful Tips:

Pharmacists are standing by to offer Pet Parent counseling regarding prescription medication purchased from Allivet before and after dispensing. Pharmacists on duty are available Monday-Friday, 9:30AM - 5:30PM EST and will be on call Saturday 12:00PM - 4:00PM EST for consultation.

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