Interceptor Flavored Tablet for Dogs, 26-50 lbs, & Cats, 6.1-12 lbs, (Yellow Box), 6 Flavored Tablets (6-mos. supply)

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Medications ship separately. Delivery times may vary.

About This Item

Details

  • Interceptor (milbemycin oxime) is a once-a-month tablet that prevents heartworm disease in dogs and cats.
  • Protect your pet from heartworm and other most common types of intestinal worms.
  • One monthly tablet helps prevent heartworm disease in dogs and cats.
  • Prevention of heartworm disease, and control and removal of intestinal worms.
  • Available in different dosing sizes, making it easier to treat dogs and cats of different sizes with one chewable tablet.

Ingredients

Instructions

FAQ

Learn More About Interceptor From Our Team of Experts

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Reviews
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4.7
Rated 4.7 out of 5 stars
329 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

82% Positive

Effectiveness

91% Positive

Ingredients

89% Positive

Long-Term Benefits

89% Positive

92 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Lynda on Dec 25, 2025

Great Chewy Service

Interceptor has been the heartworm preventive of choice, since the early-1990s. It is effective and Chewy's pricing is competitive. The best part of this is Chewy's

Interceptor has been the heartworm preventive of choice, since the early-1990s. It is effective and Chewy's pricing is competitive. The best part of this is Chewy's customer service, although I realize that's not the topic. It is just great doing business with Chewy!

Rated 4 out of 5 stars
By Melanie on Nov 10, 2025

Easy-to-read instructions; simple medication administration

Tablets are fairly easy to crush and mix with wet food; so far no major issues. The only improvement I could see is if there were a chewable formula or the tablets

Tablets are fairly easy to crush and mix with wet food; so far no major issues. The only improvement I could see is if there were a chewable formula or the tablets came pre-cut or crushed.

Rated 5 out of 5 stars
By tonya on Jan 3, 2026

For the chows

Meds are meds but I’m careful with mine I haven’t had any isdues with this yet

Meds are meds but I’m careful with mine I haven’t had any isdues with this yet

Rated 5 out of 5 stars
By Mary on Sep 14, 2025

Good Heartworm Prevention

I have two herding dogs and am a bit apprehensive giving them ivermectin so use Interceptor instead of Heartguard. It also protects against more worms and has no

I have two herding dogs and am a bit apprehensive giving them ivermectin so use Interceptor instead of Heartguard. It also protects against more worms and has no adverse side effects, Sometimes my dogs would get diarrhea from the Heartguard,

Rated 1 out of 5 stars
By Mary on Jul 23, 2025

My cat would not touch it

I searched for a heart worm prevention medication that was in chewable form. Last year I used a combination flea tick/heart worm combination that was topical. My

I searched for a heart worm prevention medication that was in chewable form. Last year I used a combination flea tick/heart worm combination that was topical. My cat hated it actually becoming angry when we applied it. This year I searched for a chewable heart worm medication. Unfortunately her previous chewable had been discontinued. I bought Interceptor because a number of reviews said their pet loved it. My cat did not. I tried it with her treats. When she wouldn’t take it that way I placed it in her wet food. She ate around it. So I will now have to purchase the topical medication I used last year,

Rated 5 out of 5 stars
By Sandra on Nov 23, 2025

Expediency of order...

Of course, thoroughness of order procedure; professional and friendly technician; ACCURACY of order!

Of course, thoroughness of order procedure; professional and friendly technician; ACCURACY of order!

Rated 5 out of 5 stars
By Paulette on Jan 23, 2026

Fast service

Love auto ship. I don’t have to worry about running out!

Love auto ship. I don’t have to worry about running out!

Rated 5 out of 5 stars
By PATSY on Oct 28, 2025

Great service!

Ran out of food quicker than i expected. Placed an order on Saturday evenIng and it was delivered on Monday. Awesome :)

Ran out of food quicker than i expected. Placed an order on Saturday evenIng and it was delivered on Monday. Awesome :)

Rated 5 out of 5 stars
By Dana on Aug 8, 2025

No Reactions and ate like a treat!

My cat, Sammy, has had a scary reaction before but with talking to his vet we decided to at least have him on heartworm rather than flea and heartworm. He ate it

My cat, Sammy, has had a scary reaction before but with talking to his vet we decided to at least have him on heartworm rather than flea and heartworm. He ate it just like a treat! No lethargy, like he didn’t even take anything. Very happy to feel safer with this medication.

Rated 5 out of 5 stars
By Timothy on Oct 24, 2025

prompt service, fast shipping,

My vet changed to a different wormer. I ordered it on line and Chewy got it approved and shipped very quickly.

My vet changed to a different wormer. I ordered it on line and Chewy got it approved and shipped very quickly.