Prescription Worm Medicine for Dogs

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Heartgard Plus Chew for Dogs, 51-100 lbs, (Brown Box), 6 Chews (6-mos. supply)

Rated 4.8828 out of 5 stars
1,451
$69.49Chewy Price
$78.89List Price
$66.02Autoship Price

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  • Prescription Item

Simparica Trio Chewable Tablet for Dogs, 44.1-88 lbs, (Green Box), 6 Chewable Tablets (6-mos. s...

Rated 4.2112 out of 5 stars
573
$180.99Chewy Price
$171.94Autoship Price

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Bravecto Chew for Dogs, 44-88 lbs, (Blue Box), 1 Chew (12-wks. supply)

Rated 4.3413 out of 5 stars
835
$71.99Chewy Price

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Heartgard Plus Chew for Dogs, up to 25 lbs, (Blue Box), 6 Chews (6-mos. supply)

Rated 4.8939 out of 5 stars
1,386
$48.59Chewy Price
$55.99List Price
$46.16Autoship Price

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NexGard Chew for Dogs, 24.1-60 lbs, (Purple Box), 3 Chews (3-mos. supply)

Rated 4.4641 out of 5 stars
1,017
$75.99Chewy Price
$81.49List Price
$72.19Autoship Price

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NexGard Chew for Dogs, 60.1-121 lbs, (Red Box), 3 Chews (3-mos. supply)

Rated 4.5804 out of 5 stars
1,008
$76.99Chewy Price
$82.39List Price
$73.14Autoship Price

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Heartgard Plus Chew for Dogs, 26-50 lbs, (Green Box), 6 Chews (6-mos. supply)

Rated 4.9035 out of 5 stars
808
$59.49Chewy Price
$66.19List Price
$56.52Autoship Price

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Simparica Trio Chewable Tablet for Dogs, 22.1-44.0 lbs, (Teal Box), 6 Chewable Tablets (6-mos. ...

Rated 4.3898 out of 5 stars
254
$175.99Chewy Price
$167.19Autoship Price

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NexGard Chew for Dogs, 10.1-24 lbs, (Blue Box), 3 Chews (3-mos. supply)

Rated 4.6499 out of 5 stars
917
$74.79Chewy Price
$79.79List Price
$71.05Autoship Price

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Simparica Trio Chewable Tablet for Dogs, 11.1-22.0 lbs, (Caramel Box), 6 Chewable Tablets (6-mo...

Rated 4.4356 out of 5 stars
303
$161.99Chewy Price
$153.89Autoship Price

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Interceptor Plus Chew for Dogs, 50.1-100 lbs, (Blue Box), 6 Chews (6-mos. supply)

Rated 4.5877 out of 5 stars
536
$70.17Chewy Price
$66.66Autoship Price

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Bravecto Chew for Dogs, 9.9-22 lbs, (Orange Box), 1 Chew (12-wks. supply)

Rated 4.6072 out of 5 stars
471
$68.99Chewy Price

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Bravecto Chew for Dogs, 22-44 lbs, (Green Box), 1 Chew (12-wks. supply)

Rated 4.4039 out of 5 stars
359
$70.99Chewy Price

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  • Prescription Item

Interceptor Plus Chew for Dogs, 25.1-50 lbs, (Yellow Box), 6 Chews (6-mos. supply)

Rated 4.6655 out of 5 stars
281
$58.36Chewy Price
$55.44Autoship Price

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  • Prescription Item

New

Bundle: Heartgard Plus Chew, 51-100 lbs, (Brown Box), 3 Chew (3-mo. supply) + NexGard Chew for ...

$117.46Chewy Price
$111.59Autoship Price

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Interceptor Plus Chew for Dogs, 8.1-25 lbs, (Green Box), 6 Chews (6-mos. supply)

Rated 4.6065 out of 5 stars
338
$46.13Chewy Price
$43.82Autoship Price

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Tri-Heart Plus Chewable Tablet for Dogs, 51-100 lbs, (Brown Box), 6 Chewable Tablets (6-mos. su...

Rated 4.7457 out of 5 stars
346
$39.99Chewy Price

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  • Prescription Item

Bravecto Chew for Dogs, 88-123 lbs, (Pink Box), 1 Chew (12-wks. supply)

Rated 4.4115 out of 5 stars
209
$71.99Chewy Price

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  • Prescription Item

Simparica Trio Chewable Tablet for Dogs, 88.1-132.0 lbs, (Brown Box), 6 Chewable Tablets (6-mos...

Rated 4.4733 out of 5 stars
131
$182.67Chewy Price
$173.54Autoship Price

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  • Prescription Item

Simparica Chewable Tablet for Dogs, 44.1-88 lbs, (Green Box), 6 Chewable Tablets (6-mos. supply...

Rated 4.259 out of 5 stars
390
$118.99Chewy Price
$113.04Autoship Price

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  • Prescription Item

Simparica Trio Chewable Tablet for Dogs, 5.6-11.0 lbs, (Purple Box), 6 Chewable Tablets (6-mos....

Rated 4.4276 out of 5 stars
152
$159.99Chewy Price
$151.99Autoship Price

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  • Prescription Item

Sentinel Tablet for Dogs, 51-100 lbs, (White Box), 6 Tablets (6-mos. supply)

Rated 4.5689 out of 5 stars
225
$72.99Chewy Price

FREE delivery on this item

  • Prescription Item

Tri-Heart Plus Chewable Tablet for Dogs, up to 25 lbs, (Blue Box), 6 Chewable Tablets (6-mos. s...

Rated 4.672 out of 5 stars
314
$22.99Chewy Price

FREE delivery over $35

  • Prescription Item

NexGard Chew for Dogs, 4-10 lbs, (Orange Box), 3 Chews (3-mos. supply)

Rated 4.5978 out of 5 stars
276
$73.19Chewy Price
$78.09List Price
$69.53Autoship Price

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  • Prescription Item

Trifexis Chewable Tablet for Dogs, 60.1-120 lbs, (Brown Box), 6 Chewable Tablets (6-mos. supply...

Rated 4.339 out of 5 stars
295
$141.36Chewy Price
$134.29Autoship Price

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  • Prescription Item

Sentinel Tablet for Dogs, 11-25 lbs, (Green Box), 6 Tablets (6-mos. supply)

Rated 4.3934 out of 5 stars
211
$50.99Chewy Price

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  • Prescription Item

Trifexis Chewable Tablet for Dogs, 10.1-20 lbs, (Orange Box), 6 Chewable Tablets (6-mos. supply...

Rated 4.5333 out of 5 stars
345
$129.14Chewy Price
$122.68Autoship Price

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  • Prescription Item

Tri-Heart Plus Chewable Tablet for Dogs, 26-50 lbs, (Green Box), 6 Chewable Tablets (6-mos. sup...

Rated 4.6343 out of 5 stars
175
$29.99Chewy Price

FREE delivery over $35

  • Prescription Item

Bravecto Chew for Dogs, 4.4-9.9 lbs, (Yellow Box), 1 Chew (12-wks. supply)

Rated 4.5328 out of 5 stars
137
$67.99Chewy Price

FREE delivery on this item

  • Prescription Item

Bundle: Heartgard Plus Chew for Dogs, 51-100 lbs, (Brown Box), 6 Chews (6-mos. supply) & NexGar...

Rated 4.1818 out of 5 stars
11
$209.48Chewy Price
$199.01Autoship Price

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  • Prescription Item

Sentinel Tablet for Dogs, 26-50 lbs, (Yellow Box), 6 Tablets (6-mos. supply)

Rated 4.507 out of 5 stars
142
$60.99Chewy Price

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  • Prescription Item

Sentinel Spectrum Chew for Dogs, 50.1-100 lbs, (Blue Box), 6 Chews (6-mos. supply)

Rated 4.2029 out of 5 stars
138
$77.99Chewy Price

FREE delivery on this item

  • Prescription Item

Credelio Chewable Tablet for Dogs, 50.1-100 lbs, (Blue Box), 6 Chewable Tablets (6-mos. supply)...

Rated 4.3933 out of 5 stars
89
$130.26Chewy Price
$123.75Autoship Price

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  • Prescription Item

Simparica Chewable Tablet for Dogs, 11.1-22 lbs, (Orange Box), 6 Chewable Tablets (6-mos. suppl...

Rated 4.4131 out of 5 stars
213
$106.99Chewy Price
$101.64Autoship Price

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  • Prescription Item

Prescription Worm Medicine for Dogs

Help your dog kick parasites to the curb with parasite & deworming medicine. Chewy has a great selection of worm medicine for dogs, including tapeworm medicine, roundworm and hookworm treatment, and ringworm medicine. We also have several combination products that get rid of several types of worms at once.

Most types of prescription worm medicine come as oral medications in tablet, chewable tablet, or soft chew form. Many treat tapeworms, roundworms, hookworms and whipworms, as well. These treatments can protect for a month or more and help break the cycle of parasite reinfection. Younger dogs may need a special puppy worm medicine, or an adult medicine in a smaller dose.

In addition to deworming pills, you can get prescription parasiticides to treat conditions like mange and ear mites. Some of these are long-acting topicals that protect against fleas and ticks, too. Dogs with ringworm will need an antifungal medicine and not a dewormer, since ringworm is not actually caused by a worm.

Perhaps one of the most important prescription medicines you will need for your dog is a heartworm preventative prescribed by your vet. See your vet for a heartworm test and a prescription and remember to give your dog his medication year-round. You can find everything you need to keep your furry friends healthy in the Chewy pet pharmacy. Shop for dog parasite medicine, worm medicine for cats, preventative flea and tick products and everything else to keep your best friend pest-free and feeling healthy.

Frequently Asked Questions about Prescription Worm Medicine for Dogs

Does dog dewormer cause diarrhea?

Dewormers can cause diarrhea and frequent defecation is a common side effect, too. The symptoms usually pass within a day or two and your pup should be back to eating normally by then, as well.

How do I set up Autoship for my prescription dog parasite and deworming medicine?

Set up Autoship for your prescription parasite and deworming medicine by choosing Autoship when you check out. Then, select your delivery frequency—you can always cancel or change this at any time. You must have a valid prescription or refill on file for Autoship to occur. If you do not have a prescription, or if your prescription is close to expiring, one of our team members will contact your vet to obtain the necessary information. Autoship makes getting deworming and parasite medicine for your dog fast and easy!

What prescription dog deworming and parasite medicine is best?

The best deworming and parasite medicine for your dog will depend on which parasites or worms he has and what other problems you want to prevent or treat. Preventatives like Heartgard and Interceptor Plus protect against heartworm and treat and control intestinal worms, as well, while NexGard and Bravecto protect against fleas and ticks that can carry canine parasites. You can also buy standalone dewormers and targeted treatments for problems like mange, mites and ringworm. Ask your vet which products might be best for your dog.

What is dog dewormer?

A dog dewormer treats roundworms, hookworms and whipworms by paralyzing and killing them, while tapeworms are killed and then broken into smaller sections, so your dog can then pass them. Some parasites, like hookworms and whipworms, are so small you may not see them in your dog’s stool at all. That is why you should visit your vet regularly and have her perform an exam and test your dog’s stool for parasites.

How do I get dog parasite and deworming medicine prescriptions online at Chewy Pharmacy?

Get dog parasite and deworming medicine prescriptions online at Chewy Pharmacy by first visiting your vet for an exam and necessary tests. Your vet can then prescribe medication for you to order online from our pharmacy. Simply add your pet’s name and vet information at checkout and we will contact your vet for the prescription. That’s all you need to do to order your dog deworming and parasite medicine prescriptions from Chewy!