Dewormers & Parasite Care

(63 results)
Simparica Trio Chewable Tablets for Dogs - 22.1-44 lbs, Blue Box
2 sizes
(17)
$41.09 - $205.19
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Simparica Trio Chewable Tablets for Dogs - 11.1-22 lbs, Caramel Box
(16)
$188.99
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Simparica Trio Chewable Tablets for Dogs - 88.1-132 lbs, Brown Box
2 sizes
(5)
$42.69 - $212.79
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Simparica Trio Chewable Tablets for Dogs - 5.6-11 lbs, Purple Box
2 sizes
(6)
$37.29 - $186.89
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Heartgard Plus Chewables For Dogs 51-100 lbs Brown
3 sizes
(16)
$16.29 - $145.89
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NexGard Plus Chewable Tablets for Dogs - 33.1-66 lbs, Purple Box
3 sizes
(3)
$46.39 - $224.39
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NexGard Plus Chewable Tablets for Dogs - 66.1-132 lbs, Red Box
3 sizes
(4)
$47.59 - $230.99
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Heartgard Plus Chewables For Dogs 1-25 lbs Blue
3 sizes
(13)
$12.79 - $99.99
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NexGard Plus Chewable Tablets for Dogs - 17.1-33 lbs, Gold Box
3 sizes
(4)
$45.19 - $217.49
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Heartgard Plus Chewables For Dogs 26-50 lbs Green
3 sizes
(12)
$14.39 - $123.89
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Trifexis Chewable Tablets for Dogs 60.1-120 lbs Brown
2 sizes
(4)
$26.99 - $164.99
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NexGard Plus Chewable Tablets for Dogs - 8.1-17 lbs, Green Box
3 sizes
(1)
$43.79 - $203.99
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Interceptor Plus Chewable Tablets for Dogs - 50.1 - 100 lbs, Blue Box
3 sizes
(17)
$13.99 - $149.99
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Trifexis Chewable Tablets for Dogs 40.1-60 lbs Blue
2 sizes
(7)
$26.99 - $158.99
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Trifexis Chewable Tablets for Dogs 20.1-40 lbs Green
2 sizes
(1)
$25.99 - $150.99
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Trifexis Chewable Tablets for Dogs 10.1-20 lbs Orange
2 sizes
(5)
$24.50 - $146.99
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Simparica Trio Chewable Tablets for Dogs - 11.1-22 lbs, Caramel Box
(2)
$37.99
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Sentinel Flavor Tabs for Dogs 51-100 lbs White
(1)
$72.99
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Tri-Heart Plus Chewable Tablets for Dogs 51-100 lbs Brown
(3)
$49.99
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Advantage Multi Topical for Dogs 55.1-88 lbs Blue
2 sizes
(1)
$21.79 - $130.39
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Advantage Multi Topical for Dogs 20.1-55 lbs Red
2 sizes
(1)
$21.69 - $129.79
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Revolution Topical for Dogs 10.1-20 Brown - 3 Month or 6 Month Supply
2 sizes
(3)
$94.49 - $166.39
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Simparica Trio Chewable Tablets for Dogs - 2.8-5.5 lbs, Gold Box
2 sizes
(1)
$36.79 - $183.09
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Advantage Multi Topical for Dogs 9.1-20 lbs Teal
2 sizes
(5)
$21.49 - $128.49
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Revolution Topical for Dogs 40.1-85 Teal - 3 Month or 6 Month Supply
2 sizes
(1)
$97.19 - $175.49
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Revolution Topical for Dogs 20.1-40 Red  - 3 Month or 6 Month Supply
2 sizes
(1)
$96.19 - $175.49
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Revolution Topical for Dogs 5.1-10 Purple - 3 Month or 6 Month Supply
2 sizes
(0)
$91.29 - $161.99
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Sentinel Flavor Tabs for Dogs 26-50 lbs Yellow
(0)
$60.99
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NexGard Plus Chewable Tablets for Dogs - 4-8 lbs, Orange Box
2 sizes
(0)
$104.99 - $200.59
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Selarid (selamectin) Topical for Dogs 40.1-85 lbs Teal, 6 Month Supply
(0)
$73.49
$94.49
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Trifexis Chewable Tablets for Dogs 5-10 lbs Pink
2 sizes
(1)
$23.99 - $139.99
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Tri-Heart Plus Chewable Tablets for Dogs 26-50 lbs Green
(3)
$36.99
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Advantage Multi Topical for Dogs 88.1-110 lbs Brown
2 sizes
(5)
$21.89 - $130.99
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Advantage Multi Topical for Dogs 3-9 lbs Green
2 sizes
(5)
$21.39 - $127.89
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Interceptor for Dogs and Cats 51-100 lbs Dogs / 12.1-25 lbs Cats White - 6 Month or 12 Month Supply
(1)
$74.49
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Interceptor  for Dogs and Cats 26-50 lbs Dogs / 6.1-12 lbs Cats Yellow - 6 Month or 12 Month Supply
(0)
$64.99
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Sentinel Flavor Tabs for Dogs 11-25 lbs Green
(3)
$50.99
Sign In & Enjoy Free Shipping Over $49
NexGard Plus Chewable Tablets for Dogs - 4-8 lbs, 1M, Orange Box
(0)
$42.99
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Senergy (selamectin) Topical for Dogs 85.1 - 130 lbs, 3 doses
(0)
$68.99
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The Pharmacy at PetSmart carries medications you need for your dog’s worms and parasites. Whether you need worms medication or parasite medication for dogs, we have you covered. At PetSmart, we know that your top priority is helping your dog and following your vet’s treatment plan. 
Remember, don’t give your dog medication without first seeking advice from your vet. PetSmart customers can place prescription orders through The Pharmacy website, as long as they are active prescriptions that have been prescribed by a vet in the last 12 months.
Prescriptions from a licensed veterinarian are required to purchase dewormer medication from The Pharmacy at PetSmart. Need to find a vet? We have you covered.
Not looking for dewormers and parasite care for your dog? The Pharmacy at PetSmart carries a wide selection of many different medications, including: