Prescription Heartworm Prevention & Medicine for Cats

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Heartgard Chew for Cats, 5-15 lbs, (Purple Box), 6 Chews (6-mos. supply)

Rated 4.3939 out of 5 stars
66
$46.99Chewy Price
$57.99List Price
$44.64Autoship Price

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Revolution Plus Topical Solution for Cats, 11.1-22 lbs, (Green Box), 6 Doses (6-mos. supply)

Rated 4.529 out of 5 stars
293
$142.99Chewy Price
$135.84Autoship Price

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Revolution Topical Solution for Cats, 5.1-15 lbs, (Blue Box), 6 Doses (6-mos. supply)

Rated 4.4553 out of 5 stars
604
$157.99Chewy Price
$150.09Autoship Price

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Bravecto Plus Topical Solution for Cats, >6.2-13.8 lbs, (Blue Box), 1 Dose (2-mos. supply)

Rated 4.1014 out of 5 stars
69
$45.99Chewy Price

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Senergy Topical Solution for Puppies & Kittens, up to 5 lbs, (Mauve Box), 3 Doses (3-mos. suppl...

Rated 3 out of 5 stars
4
$41.58Chewy Price
$45.74List Price
$39.50Autoship Price

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Revolution Plus Topical Solution for Cats, 5.6-11 lbs, (Orange Box), 6 Doses (6-mos. supply)

Rated 4.6209 out of 5 stars
306
$138.99Chewy Price
$132.04Autoship Price

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Advantage Multi Topical Solution for Cats, 9.1-18 lbs, (Purple Box), 6 Doses (6-mos. supply)

Rated 4.5315 out of 5 stars
111
$115.19Chewy Price
$109.43Autoship Price

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Revolt Topical Solution for Cats, 5.1-15 lbs, (Blue Box), 6 Doses (6-mos. supply)

Rated 3.4667 out of 5 stars
30
$65.94Chewy Price

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Milbehart Flavored Tablets for Dogs, 51-100 lbs, & Cats, 12-25 lbs, (Red Box), 6 Flavored Table...

Rated 5 out of 5 stars
1
$54.43Chewy Price
$51.71Autoship Price

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Selarid Topical Solution for Puppies & Kittens, 0-5 lbs, (Mauve Box), 3 Doses (3-mos. supply)

Rated 1 out of 5 stars
1
$32.49Chewy Price
$30.87Autoship Price

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Interceptor Chewable Tablet for Dogs, 11-25 lbs, & Cats, 1.5-6 lbs, (Green Box), 6 Chewable Tab...

Rated 4.5667 out of 5 stars
30
$46.99Chewy Price
$44.64Autoship Price

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Centragard Topical Solution for Cats, 5.6-16.5 lbs, (Red Box), 3 Doses (3-mos. supply)

Rated 4 out of 5 stars
16
$51.49Chewy Price
$63.49List Price
$48.92Autoship Price

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Revolution Topical Solution for Kittens & Puppies, under 5 lbs, (Mauve Box), 3 Doses (3-mos. su...

Rated 4.4894 out of 5 stars
94
$63.99Chewy Price
$60.79Autoship Price

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Midamox Topical Solution for Cats, 9.1-18 lbs, (Purple Box), 6 Doses (6-mos. supply)

$65.99Chewy Price
$62.69Autoship Price

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Bravecto Plus Topical Solution for Cats, 2.6-6.2 lbs, (Green Box), 1 Dose (2-mos. supply)

Rated 3.4 out of 5 stars
5
$44.99Chewy Price

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Senergy Topical Solution for Cats, 5.1-15 lbs, (Blue Box), 3 Doses (3-mos. supply)

Rated 3.75 out of 5 stars
12
$47.90Chewy Price
$52.69List Price
$45.50Autoship Price

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Revolution Topical Solution for Cats, 15.1-22 lbs, (Taupe Box), 6 Doses (6-mos. supply)

Rated 4.4127 out of 5 stars
63
$161.99Chewy Price
$153.89Autoship Price

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Advantage Multi Topical Solution for Cats, 5.1-9 lbs, & Ferrets, (Orange Box), 6 Doses (6-mos. ...

Rated 4.6316 out of 5 stars
38
$115.19Chewy Price
$109.43Autoship Price

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Revolt Topical Solution for Puppies & Kittens, 0-5 lbs, (Rose Box), 3 Doses (3-mos. supply)

Rated 3 out of 5 stars
2
$24.98Chewy Price

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Milbehart Flavored Tablets for Dogs, 11-25 lbs, & Cats, 1.5-6 lbs, (Blue Box), 6 Flavored Table...

Rated 3.6667 out of 5 stars
3
$34.84Chewy Price
$33.10Autoship Price

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Revolution Plus Topical Solution for Cats, 2.8-5.5 lbs, (Gold Box), 3 Doses (3-mos. supply)

Rated 4.4706 out of 5 stars
34
$62.99Chewy Price
$59.84Autoship Price

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Interceptor Chewable Tablet for Dogs, 26-50 lbs, & Cats, 6.1-12 lbs, (Yellow Box), 6 Chewable T...

Rated 4.5172 out of 5 stars
29
$52.99Chewy Price
$50.34Autoship Price

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Centragard Topical Solution for Cats, 1.8-5.5 lbs, (Green Box), 3 Doses (3-mos. supply)

$50.49Chewy Price
$61.49List Price
$47.97Autoship Price

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Selarid Topical Solution for Cats, 5.1-15 lbs, (Blue Box), 6 Doses (6-mos. supply)

Rated 3.5 out of 5 stars
18
$68.49Chewy Price
$65.07Autoship Price

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Midamox Topical Solution for Cats, 5.1-9 lbs, (Orange Box), 6 Doses (6-mos. supply)

$65.99Chewy Price
$62.69Autoship Price

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Bravecto Plus Topical Solution for Cats, >13.8-27.5 lbs, (Purple Box), 1 Dose (2-mos. supply)

Rated 4.3077 out of 5 stars
13
$46.99Chewy Price

FREE shipping over $49

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Senergy Topical Solution for Cats,15.1-22 lbs, (Taupe Box), 3 Doses (3-mos. supply)

Rated 5 out of 5 stars
3
$49.11Chewy Price
$54.02List Price
$46.65Autoship Price

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Advantage Multi Topical Solution for Cats, 2-5 lbs, (Turquoise Box), 3 Doses (3-mo. supply)

Rated 4 out of 5 stars
1
$66.92Chewy Price
$63.57Autoship Price

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Revolt Topical Solution for Cats, 15.1-22 lbs, (Taupe Box), 6 Doses (6-mos. supply)

Rated 4 out of 5 stars
1
$65.94Chewy Price

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Milbehart Flavored Tablets for Dogs, 26-50 lbs, & Cats, 6.1-12 lbs, (Purple Box), 6 Flavored Ta...

Rated 5 out of 5 stars
2
$44.64Chewy Price
$42.41Autoship Price

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Midamox Topical Solution for Cats, 2-5 lbs (Teal Box), 3 Doses (3-mos. supply)

$27.99Chewy Price
$31.24List Price
$26.59Autoship Price

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Interceptor Chewable Tablet for Dogs, 51-100 lbs, & Cats, 12.1-25 lbs, (White Box), 6 Chewable ...

Rated 4.5217 out of 5 stars
46
$65.99Chewy Price
$62.69Autoship Price

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Selarid Topical Solution for Cats, 15.1-22 lbs, (Taupe Box), 6 Doses (6-mos. supply)

Rated 5 out of 5 stars
3
$69.99Chewy Price
$66.49Autoship Price

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Prescription Heartworm Prevention & Medicine for Cats

Help protect your kitty from dangerous heartworms with prescription heartworm medicine. Chewy carries many types of heartworm medication for cats, including heartworm pills, topical medications, and combination products that kill other parasites, too.

Your vet should be up to date on all the latest products available and can advise you on which one may be best for your feline. It is also important to ask about heartworm medicine for kittens, as younger cats need protection and you will need a formula that is safe for them. Heartworm medication is available only by prescription, and your vet will need to perform a heartworm test before prescribing any preventatives. There is no FDA-approved heartworm treatment, so prevention is always the best medicine!

Heartworm prevention comes in many forms, so you ought to be able to find a product that’s convenient and easy to administer. You should have the option of oral heartworm medications in chewable tablet or soft chew form, or a heartworm preventative medicine applied as a topical. Most heartworm medicines provide protection for up to a month, and some are available as combo treatments that protect against fleas, ticks, roundworms, hookworms, tapeworms, and more.

The Chewy pet pharmacy has many medications to keep your pets healthy and safe, including prescription cat medicine for a variety of ailments, heartworm medicine for dogs and medications for your other pets, too. Shop our great selection of heartworm medicines and keep your kitty protected 24/7!

Frequently Asked Questions about Prescription Heartworm Prevention & Medicine for Cats

How do I get cat heartworm medicine prescriptions online at Chewy Pharmacy?

Get cat heartworm medicine prescriptions online at Chewy Pharmacy by visiting your vet and talking about different prevention options. Your vet can perform a heartworm test, recommend a product and issue a prescription for the right preventative and dose. Then, go to the Chewy Pharmacy and add the prescribed product to your cart. You can add your cat’s info and vet contact information at checkout so Chewy can verify the prescription. That’s all you need to do to order your heartworm medications from Chewy!

What prescription cat heartworm medicine is best?

The best prescription heartworm medicine will provide year-round protection in an easy-to-administer formula. Your vet can advise you on the different options available and issue a prescription you can use to order your medicine online. Discuss whether you want just heartworm prevention or a combination product that includes dewormers, flea and tick protection, or all three in one dose. Popular brands include Revolution, Interceptor Plus, Bravecto, and Heartgard.

Why is cat heartworm medicine only available with a prescription?

Cat heartworm medicine is only available with a prescription because your kitty needs a heartworm test to ensure she isn’t already infected first. Giving a heartworm preventative to a cat who is already infected can be dangerous or even deadly. A vet can also determine the right dosage for your pet and suggest the right products for your feline’s lifestyle, health, and age.

Do cats need heartworm medicine in the winter?

Cats need heartworm medicine in the winter, spring, fall, and summer because the danger of failing to protect them is too great. Although there are fewer mosquitos around during winter in most climates, there is still the risk of a bite and heartworm contraction. Protect your furry friend year-round from heartworms for safety and peace of mind.

How do I set up Autoship for my prescription cat heartworm medicine?

Set up Autoship for your prescription heartworm medicine by selecting the Autoship option and choosing a delivery frequency at checkout. Once you set up Autoship, you can change or cancel it any time you want. You must have a valid prescription or remaining refills on file for Autoship pharmacy deliveries to occur. If we do not have a prescription, or if your prescription is expiring soon, one of our team members will reach out to your vet to obtain all the necessary information. You can always have a full supply of your kitty’s heartworm medicine with Autoship from Chewy!