Interceptor Plus
Interceptor Plus is a prescription monthly chewable tablet for dogs and cats that provides protection against heartworm disease and treats and controls common intestinal parasites including roundworms, hookworms, whipworms, and tapeworms. This broad-spectrum dewormer is administered year-round to eligible pets based on weight and is suitable for puppies, dogs, kittens, and cats.
Interceptor Plus is a monthly heartworm preventive and intestinal parasite treatment for dogs and cats.
Key facts at a glance
- RxNorm
- 2058476
- Generic
- Interceptor Plus
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Interceptor Plus is indicated for the prevention of heartworm disease caused by Dirofilaria immitis and for the treatment and control of adult roundworms, adult hookworms, adult whipworms, and adult tapeworms in dogs and cats.
Interceptor Plus contains two active ingredients: milbemycin oxime, which works by disrupting the nervous system of parasites to eliminate heartworm larvae and intestinal worms, and praziquantel, which causes paralysis and death of tapeworms by damaging their skin.
This medication requires a veterinary prescription. Pets must be tested for existing heartworm infection before starting treatment. Side effects may include vomiting, diarrhea, lethargy, or decreased appetite. Not for use in puppies under 6 weeks of age or cats under 8 weeks of age. Always consult your veterinarian for proper dosing based on your pet's weight.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy