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Interceptor for Cats (Rx)

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Product Description

Interceptor for Cats (White for Cats 12-25 lbs, 6 Pack) protects cats from potentially fatal heartworm disease. This cat medicine is also safe for dogs and puppies 4 weeks and older.

The active ingredient in Interceptor pet meds, milbemycin oxime, also controls adult hookworms, roundworms, and whipworms.

The palatable once-a-month cat medicine by Novartis Animal Health prevent heartworm disease in cats, controls adult hookworm, and remove and controls adult roundworm and whipworm infections in cats.

Order Interceptor White heartworm meds and other cat medicine and pet prescription medication from out pet pharmacy online based in Texas. We care for your pets!




  • Multi-way protection against intestinal parasites and heartworm disease in cats
  • Once-a-month flavor tabs
  • Kills heartworm larvae in the tissue stage
  • Safe for dogs and puppies 4 weeks and older


Federal (USA) law restricts this pet med to be used by or on the order of a licensed veterinarian. Keep this and all drugs out of the reach of children.


The palatable once-a-month tablet prevents heartworm disease in cats and removes adult roundworms and hookworms in cats and kittens.

INTERCEPTOR White for Cats is available in three tablet sizes in color-coded packages for oral administration to cats and kittens. Each tablet is formulated to provide a minimum of 0.9 mg/lb (2.0 mg/kg) body weight of milbemycin oxime. Milbemycin oxime consists of the oxime derivatives of 5-didehydromilbemycins in the ratio of approximately 80% A4 (C32H45NO7, MW 555.71) and 20% A3(C31H43NO7, MW 541.68).


INTERCEPTOR Flavor Tabs for Cats are indicated for use in the prevention of heartworm disease in cats caused by Dirofilaria immitis, and the removal of adult Ancylostoma tubaeforme (hookworm) and Toxocara cati (roundworm) in cats and kittens six weeks of age or greater and 1.5 lbs. body weight or greater.


INTERCEPTOR for Cats is given orally, once a month, at the recommended minimum dosage rate of 0.9 mg milbemycin oxime per pound of body weight (2.0 mg/kg).

Recommended Dosage Schedule for Cats

Body WeightINTERCEPTOR Flavor Tab
1.5 to 6 lbs.One tablet (5.75 mg)
6.1-12 lbs.One tablet (11.5 mg)
12.1-25 lbs.One tablet (23.0 mg)

Cats over 25 lbs. are provided the appropriate combination of tablets.


INTERCEPTOR Flavor Tabs for Cats are palatable and may be offered by the owner as a treat. As an alternative, this cat heartworm preventative heartwormmedicine may be offered in food or administered as other tablet medications. The tablets can be broken for ease of administration. Watch the cat closely following dosing to be sure the entire dose has been consumed. If it is not entirely consumed, redose once with the full recommended dose as soon as possible.

INTERCEPTOR Flavor Tabs for Cats must be administered monthly, preferably on the same date each month.

The first dose of this heartworm meds should be administered within one month of the cat’s first exposure to mosquitoes and monthly thereafter until the end of the mosquito season. If a dose is missed and a 30-day interval between dosing is exceeded, administer this feline heartworm disease medicine immediately and resume the monthly dosing schedule. It is recommended that cats be tested for existing heartworm infection prior to starting treatment with this heartworm medicine for cats (see Precautions).


Palatability trials conducted in 72 cats demonstrated that INTERCEPTOR white for cats were successfully dosed by the owner when they either offered the tablet as a treat placed the tablet in the cat’s mouth or placed the tablet in the cat’s food in 72% of cats. About 16% of the cats were manually dosed and 13% of the cats were not successfully dosed according to the protocol.


Do not use this cat heartworm medicine in kittens less than six weeks of age or less than 1.5 lbs. body weight. Safety in heartworm-positive cats has not been established. Safety in breeding, pregnant, and lactating queens and breeding toms has not been established.


INTERCEPTOR for Cats eliminates the tissue stage of heartworm larvae and hookworm (Ancylostoma tubaeforme) and roundworm (Toxocara cati) infections when administered orally according to the recommended dosage schedule. The anthelmintic activity of milbemycin oxime is believed to be a result of interference with invertebrate neurotransmission.


Milbemycin oxime has been tested safely in over 8 different breeds of cats. In well-controlled clinical field studies 141 cats completed treatment with milbemycin oxime. Milbemycin oxime was used safely in animals receiving frequently used veterinary products such as vaccines, anthelmintics, anesthetics, antibiotics, steroids, flea collars, shampoos and dips.

Safety studies were conducted in young cats and kittens and doses of 1X, 3X and 5X the minimum recommended dose of 2.0 mg/kg demonstrated no drug-related effects. Tolerability studies at exaggerated doses of 10X also demonstrated no drug-related adverse effects in kittens and young adult cats.

How supplied:

INTERCEPTOR White for Cats are available in three tablet sizes (see Dosage section), formulated according to the weight of the cat. Each tablet size is available in color-coded packages of 6 or 12 tablets each, which are packaged 10 per display carton.

Storage conditions:

INTERCEPTOR for Cats to treat feline heartworm disease should be stored at room temperature, between 59° and 77°F (15-25°C).

Manufactured for: Novartis Animal Health US, Inc.,

Greensboro, NC 27408, USA

NADA #140-915, Approved by FDA

©2010 Novartis


NAH/INT-FT/VI/4 10/09

INTERCEPTOR and Flavor Tabs are registered trademarks of Novartis AG.

NAC No.:


Additional Information

Bottle Size

Cats 12-25lbs, 6 Pack, Cats 6-12lbs, 6 Pack


White, Yellow

Product Type

Nutrition Medicine, OTC Medicine, Rx Medicine


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