Interceptor Plus Soft Chews for Dogs, 50.1-100 lbs, (Blue Box)
Prescription Item
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Your furry friend must have a current heartworm test result on file with your veterinarian in order to be prescribed heartworm medication. Please visit your veterinarian to have this test performed annually to protect your four-legged friend. Interceptor Plus is a monthly, broad-spectrum parasiticide prescribed by your vet to help prevent heartworm disease. Plus, it treats and controls adult roundworm, adult hookworm, adult whipworm and adult tapeworm. It comes in a tasty, chewable tablet, making dosing easy for you and your pet.
UsesFor the prevention of heartworm disease and for the treatment and control of adult roundworm, adult hookworm, adult whipworm, and adult tapeworm, plus flea tapeworm infections in dogs and puppies two pounds of body weight or greater and six weeks of age and older.
Possible Side EffectsPlease contact your veterinarian if the following adverse reactions occur: vomiting, diarrhea, depression/lethargy, ataxia, anorexia, convulsions, weakness, and salvation.
Drug & Food InteractionsTalk to your veterinarian about any other drugs your pet is taking before starting this medication.
Precautions
Treatment with fewer than six monthly doses after the last exposure to mosquitoes may not provide complete heartworm prevention. Please consult your veterinarian for use in pets used for breeding or in lactating females. Not for use in humans. Keep this and all drugs out of the reach of children.
Dosage Chart
Color on Box | Weight Range | Strength | Dosage | Product Page |
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Orange | 2-8 lbs | 2.3 mg Milbemycin Oxime & 22.8 mg Praziquantel | Administer orally once a month | ✓-Click Here |
Green | 8.1-25 lbs | 5.75 mg Milbemycin Oxime & 57 mg Praziquantel | Administer orally once a month | ✓-Click Here |
Yellow | 25.1-50 lbs | 11.5 mg Milbemycin Oxime & 114 mg Praziquantel | Administer orally once a month | ✓-Click Here |
Blue | 50.1-100 lbs | 23 mg Milbemycin Oxime & 228 mg Praziquantel | Administer orally once a month | ✓-Click Here |
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Item Number146142
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Common Brand Name(s)Interceptor Plus
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For Use WithDogs
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Generic NameMilbemycin Oxime, Praziquantel
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Administration FormOral
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BrandElanco
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Breed SizeLarge Breeds
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Product FormChewable Tablet
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Strength23 mg Milbemycin Oxime and 228 mg Praziquantel
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Health ConditionHeartworms, Hookworms, Roundworms, Whipworms, Tapeworms
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Drug TypeParasiticide
23 mg Milbemycin Oxime and 228 mg Praziquantel.
Administer orally, once a month. Consult your veterinarian for proper dosing instructions.
Storage InstructionsStore at room temperature, between 59° - 77°F. .
How To Give Your Dog Interceptor Plus
Interceptor Plus (milbemycin oxime/praziquantel) is a chewable tablet flavored with real chicken that you give to your dog once a month, every month. Its overall acceptability is 96.6%, which makes dosing easy.
You can give Interceptor Plus to your dog by hand or add it to a small amount of dog food. Administer the chewables in a manner that encourages your dog to chew, rather than to swallow without chewing. If your dog normally swallows treats whole, you may break the chewables into pieces and feed them to your dog.
Make sure that your dog consumes the complete dose, and observe your pet for a few minutes after administration to ensure that no part of the dose is lost or rejected. If you suspect that any of the dose has been lost, redosing is recommended.
Upgrade Your Heartworm Protection
Interceptor Plus (milbemycine oxime/praziquantel) combines heartworm disease prevention with the treatment and control of adult hookworm, roundworm, whipworm and tapeworm infections. It’s a once-a-month, chicken-flavored chewable that’s safe for puppies 6 weeks and older, weighing over 2 pounds.


Broad Spectrum Protection
Protect your dog against five different parasites with just one chew. Interceptor Plus prevents heartworm disease and controls hookworm, roundworm, whipworm, and tapeworm threats for a full month to help give you peace of mind on all your adventures. Each box contains stick-on labels for your calendar, making reliable, year-round protection easy to remember with a monthly reminder.
5 Parasites, One Easy Dose
The two powerful active ingredients in Interceptor Plus, milbemycin oxime and praziquantel, when used according to the label, provides safe and effective broad-spectrum protection against five types of dangerous worms. Make parasite protection one and done every month.


Tasty Chicken-Flavored Chew
Interceptor Plus comes as a tasty, chicken-flavored chew, accepted by 96.6% of dogs in a field study, so you won’t have to battle to get your pup to take his medicine. Dogs love it and pet parents appreciate the ease.Simply give Interceptor Plus to your dog by hand or by adding it to a small amount of dog food, and make sure your dog chews up and swallows the complete dose.
Product Guide
Interceptor Plus offers protection for dogs in most sizes and weights. Choose the option best suited for your furry friend.
2 - 8 LBS
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8.1 - 25 LBS
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25.1 - 50 LBS
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50.1 - 100 LBS
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Indication
Interceptor Plus prevents heartworm disease and treats and controls adult roundworm, hookworm, whipworm, and tapeworm infections in dogs and puppies 6 weeks or older and 2 pounds or greater.
Important Safety Information
Treatment with fewer than 6 monthly doses after the last exposure to mosquitoes may not provide complete heartworm prevention. Prior to administration of Interceptor Plus, dogs should be tested for existing heartworm infections. The safety of Interceptor Plus has not been evaluated in dogs used for breeding or in lactating females. The following adverse reactions have been reported in dogs after administration of milbemycin oxime or praziquantel: vomiting, diarrhea, decreased activity, incoordination, weight loss, convulsions, weakness, and salivation. See Interceptor Plus product label for complete safety information.
About Interceptor Plus
Interceptor Plus was made to protect canine companions from five common parasitic health threats. Just one dose every month prevents heartworm disease and controls hookworms, roundworms, whipworms, and tapeworms in dogs. Dosing is easy with the chicken-flavored chews, and protection can be achieved year-round with monthly use. Give your dog Interceptor Plus to protect your best friend from these dangerous parasites. Interceptor is a trademark of Elanco or its affiliates. PM-US-20-1050

Customer Reviews
96% Recommend
96% of reviewersrecommend this product
You've Already Reviewed This Item
303 Reviews
Showing 1-10 of 303 Reviews
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Heartworm prevention
By Chanel on Feb 19, 2021
I’ve been using this product for both my dogs and have had no issues! They actually love the taste even being picky eaters and I’ve had no issues with any of the intestinal parasites the product protects against. Also love the quick and easy process of chewy getting the okay from our vet! Always ensure your annual check ups are up to date to avoid issues.
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great product
By Cassie on Feb 6, 2021
I’ve been using this for both of my labs for 4 years with no issues. I love about 2 hours away for our vet, which is also in a different state. With the pandemic I did not want to leave the state unless absolutely necessary so I tried Chewy pharmacy for the first time. I placed my order on a Friday and received confirmation from the vet the following week and my order received 2 days later.
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As Advertised, No Problems
By Spryguy on Jan 16, 2021
Started to get these from Chewy after my Vet stopped stocking this item. Chewy even contacted my Vet and got the scrip approval so I expended zero effort and even saved a few bucks over what the Vets office was charging me for this. Shipping only takes a day or two. Chewy is a great company, I will use them more and more. Nothing but good experiences so far. I've used these Interceptor tabs for years with these 2 current dogs and never had any trouble with parasites. No problems.
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Soft Chewable!
By JMMel on Feb 20, 2021
It was hard to find a heartworm preventative for large dogs that is soft and chewy. So glad I don't have to crush up the hard pills that I was buying from other brands before I found this one.
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Recommended by our vet after getting worms
By goldenpapa on Jan 29, 2021
Our 10 year old Golden got worms last year for the first time, I believe. We had used Heartguard, but our vet recommended this as it protects from more invaders. It’s been a year and so far so good. We also have our 1 year old pup on this.
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Good product
By Brit on Jan 23, 2021
I buy this because it's what my dog's vet recommends and I purchase it from Chewy because they have the best price It's effective in controlling parasites, has never caused side effects and it must taste good because my dog thinks it's a treat.
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Best monthly heartworm treatment hands down!
By Cully on Jan 11, 2021
My vet recommended Interceptor plus for our dog as we live in a rural area where he was apt to get tapeworms and whip worms which the other meds such as Heartguard do not protect against. He tolerates them well, I cut the pill up with scissors and mix it with his food.
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Product is fine. Chewy Rx process is horrible.
By Eric on Dec 19, 2020
My vet faxed my dog's Rx to Chewy 3 times in Oct. Chewy said they didn't receive. In Dec. I called my vet and went through the process again with problems. My vet will now only give the Rx to us and we will have to deal with Chewy. It was also frustrating that I had to be a middle man between Chewy and my vet when the correspondence should have been between Chewy and my vet.
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Prescription at Chewy
By Babs on Dec 30, 2020
You can't do better then ordering pet medications from Chewy. The prices are SO MUCH better then any vet offers and Chewy will actually call your vet to obtain the prescriptions no hassles. The best of the best is Chewy always on top of everything pet related.
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Great price!
By JAMiE on Jan 5, 2021
This was my first time ordering an RX through chewy- they were very fast to contact my vet office so it was approved right away, and the pricing was the best deal in comparing to other companies! Thanks chewy! <3