Interceptor Plus Chewables - Heartworm Preventives
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Interceptor Plus Chewables

Interceptor Plus Chewables
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2.3mg/22.8mg (2-8 lbs dogs)
6 ct
$5.49 each    $5.49 each
How many 6 cts?
$6.79 each
   $5.49 each
How many Chewables?
Total Qty: 1 x 1 = 1
Price Per Chewable: $6.79
Subtotal: $6.79
Add to Cart
All items In-Stock and ready for delivery unless otherwise noted
5.7mg/57mg (8.1-25 lb dogs)
6 ct
$5.82 each    $5.82 each
How many 6 cts?
$6.99 each
   $5.82 each
How many Chewables?
Total Qty: 1 x 1 = 1
Price Per Chewable: $6.99
Subtotal: $6.99
Add to Cart
All items In-Stock and ready for delivery unless otherwise noted
11.5mg/114mg (25.1-50 lb dogs)
6 ct
$6.99 each    $6.99 each
How many 6 cts?
$7.99 each
   $6.99 each
How many Chewables?
Total Qty: 1 x 1 = 1
Price Per Chewable: $7.99
Subtotal: $7.99
Add to Cart
All items In-Stock and ready for delivery unless otherwise noted
23mg/228mg (50.1-100 lb dogs)
6 ct
$8.33 each    $8.33 each
How many 6 cts?
$9.69 each
   $8.33 each
How many Chewables?
Total Qty: 1 x 1 = 1
Price Per Chewable: $9.69
Subtotal: $9.69
Add to Cart
All items In-Stock and ready for delivery unless otherwise noted

View our How to manage Heartworms video.

What is Interceptor Plus?
Interceptor Plus is a chicken-flavored chewable that kills the immature form of heartworm (Dirofilaria immitis). Interceptor Plus also treats and controls adult roundworms (Toxocara canis and Toxascaris leonina), hookworms (Ancylostoma caninum), whipworms (Trichuris vulpis), and tapeworms (Taenia pisiformis).

Who is it for?
Interceptor Plus is for dogs and puppies that weigh 2 lbs or more, and are 6 weeks of age or older. The safety of Interceptor Plus has not been evaluated in dogs used for breeding or in nursing females. Contact your veterinarian before using this product in pregnant, nursing, or breeding animals.

What are the benefits?

  • Protects your dog against heartworm, roundworms, hookworms, whipworms, and tapeworms
  • Easy-to-give chewables are flavored with real chicken and taste like treats.

How does Interceptor Plus work?
Interceptor Plus chewables contain the active ingredients milbemycin oxime and praziquantel. Milbemycin oxime eliminates the immature stage of heartworm larvae and also treats and controls adult roundworms, hookworms, and whipworms. Praziquantel is used for the treatment and control of adult tapeworms.

Is there a generic equivalent available?

How is it given?
Interceptor Plus must be administered monthly, preferably on the same date each month. Drs. Foster and Smith recommends (and our guarantee requires) that Interceptor Plus be given year round, although some veterinarians may recommend giving it only during the mosquito season. If given seasonally, the first dose must be given within 30 days of the dog's first seasonal exposure to mosquitoes and continuing until at least 6 months after the dog's last seasonal exposure to mosquitoes. Treatment with fewer than 6 monthly doses after the last exposure to mosquitoes may not provide complete heartworm protection. When switching from another heartworm preventive product to Interceptor Plus, the first dose of Interceptor Plus should be given within a month of the last dose of the former product.

Most dogs like the taste of Interceptor Plus chewables and will accept the chewable as a treat. The chewable can be given by hand or added to a small amount of dog food. The chewable should be administered in a manner that encourages the dog to chew, rather than to swallow without chewing. Chewables may be broken into pieces and fed to dogs that normally swallow treats whole. Watch the dog closely to be sure the entire dose has been consumed. If not entirely consumed, give another full recommended dose as soon as possible.

What results can I expect?
Interceptor Plus will kill immature heartworm larvae the dog was exposed to in the preceding month. It will treat an intestinal infection with adult roundworms, hookworms, whipworms, and tapeworms. It will not kill fleas.

What form(s) does it come in?

Please click on "More Information" for possible drug and food interactions with this medication.

More Info
Brand Name
Interceptor Plus Chewables

IN-ter-sep-ter Plus

Common Drug Name
Milbemycin oxime + Praziquantel

What should I discuss with my veterinarian while considering Interceptor Plus?
Talk to your veterinarian about the heartworm testing that is recommended before starting your dog on a heartworm prevention program.

Some intestinal parasites, such as roundworms and hookworms, can be spread to people. Talk to your veterinarian about other measures you can take to protect yourself and prevent your pet from being infected or re-infected with intestinal worms.

Notify your veterinarian of any other medications or supplements your dog is taking, and also if your dog has had any reactions to previous medications.

What should I do if I miss a dose?
If a dose is missed and over 30 days have gone by since the last dose, give Interceptor Plus immediately and resume the monthly dosing schedule. Tell your veterinarian that a dose was missed.

What is the most important information I should know?
If the interval between doses is longer than one month, the efficacy of the drug is reduced.

Who should not take it?
Do not use in puppies less than 6 weeks of age or less than 2 pounds. Not for use in Collies or other herding breeds over the recommended heartworm prevention dose unless under the strict supervision of a veterinarian. Not for use in cats. This medication should only be given to the pet for which it was prescribed.

What side effects may be seen when taking Interceptor Plus?
Side effects of Interceptor Plus are rare but may include vomiting, diarrhea, lethargy/depression, drooling, staggering, weakness, and seizures. If you observe any of these side effects, contact your veterinarian immediately.

How is it stored?
Interceptor Plus chewables should be stored in a dry place at room temperature, between 59°F and 86°F. Keep out of reach of children and pets.

What should I do if I know of or suspect there has been an overdose?
If you know or suspect your dog has had an overdose, or if you observe vomiting, depression, diarrhea, drooling, staggering, weakness, or seizures, contact your veterinarian immediately.

What should I avoid when giving my pet Interceptor Plus?
Although there are no known drug or food interactions with this medication, consult with your veterinarian before using Interceptor Plus with any other medications, including vitamins and supplements, since interactions may occur.

Where is more information available?
Ask your veterinarian, consult with one of our pharmacists at 1-800-447-3021, or see the Patient Information Sheet on this medication. For technical assistance or to report suspected adverse reactions, contact Novartis Animal Health at 1-800-637-0281.

Although heartworm is treatable, it may result in serious complications. No matter what it costs in dollars, the cost is even greater to the long-term health of your pet.
Heartworm disease is devastating. The good news is that this disease is preventable.
Questions from you and answers from our pharmacists about generic drugs for your pet or horse.
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