Dewormers & Parasite Care

(63 results)
Simparica Trio Chewable Tablets for Dogs - 22.1-44 lbs, Blue Box
2 sizes
(19)
$41.09 - $214.99
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Simparica Trio Chewable Tablets for Dogs - 11.1-22 lbs, Caramel Box
(16)
$188.98
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Heartgard Plus Chewables For Dogs 51-100 lbs Brown
3 sizes
(16)
$16.29 - $145.89
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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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Simparica Trio Chewable Tablets for Dogs - 88.1-132 lbs, Brown Box
2 sizes
(5)
$42.69 - $214.99
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Simparica Trio Chewable Tablets for Dogs - 5.6-11 lbs, Purple Box
2 sizes
(6)
$37.29 - $188.98
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NexGard Plus Chewable Tablets for Dogs - 66.1-132 lbs, Red Box
3 sizes
(6)
$47.59 - $230.99
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NexGard Plus Chewable Tablets for Dogs - 17.1-33 lbs, Gold Box
3 sizes
(5)
$45.19 - $217.49
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Heartgard Plus Chewables For Dogs 26-50 lbs Green
3 sizes
(13)
$14.39 - $123.89
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Heartgard Plus Chewables For Dogs 1-25 lbs Blue
3 sizes
(13)
$12.79 - $99.99
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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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Trifexis Chewable Tablets for Dogs 60.1-120 lbs Brown
2 sizes
(5)
$26.99 - $164.99
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Interceptor Plus Chewable Tablets for Dogs - 50.1 - 100 lbs, Blue Box
3 sizes
(17)
$13.99 - $148.79
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Simparica Trio Chewable Tablets for Dogs - 11.1-22 lbs, Caramel Box
(2)
$37.99
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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+ 1 more
Simparica Trio Chewable Tablets for Dogs - 2.8-5.5 lbs, Gold Box
2 sizes
(1)
$36.79 - $188.98
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Sentinel Flavor Tabs for Dogs 51-100 lbs White
(1)
$72.99
Sign In & Enjoy Free Shipping Over $49
NexGard Plus Chewable Tablets for Dogs - 4-8 lbs, Orange Box
2 sizes
(0)
$104.99 - $200.59
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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 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 - $134.99
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Advantage Multi Topical for Dogs 20.1-55 lbs Red
2 sizes
(1)
$21.69 - $134.99
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Sentinel Flavor Tabs for Dogs 11-25 lbs Green
(3)
$50.99
Sign In & Enjoy Free Shipping Over $49
Selarid (selamectin) Topical for Dogs 10.1-20 lbs  Brown, 6 Month Supply
(0)
$71.99
$92.59
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Advantage Multi Topical for Dogs 9.1-20 lbs Teal
2 sizes
(5)
$21.49 - $134.99
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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Tri-Heart Plus Chewable Tablets for Dogs 26-50 lbs Green
(3)
$36.99
Sign In & Enjoy Free Shipping Over $49
Advantage Multi Topical for Dogs 3-9 lbs Green
2 sizes
(5)
$21.39 - $134.99
Sepnd $100 on select Pharmacy, Save $20 on your Order!
Save 35% On Your First Autoship Order!
+ 1 more
Revolution Topical for Puppies and Kittens up to 5 lbs Pink - 3 Month or 6 Month Supply
(0)
$71.39
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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Revolution Topical for Dogs 85.1-130 Plum - 3 Month or 6 Month Supply
2 sizes
(0)
$122.59 - $224.09
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
Save 35% On Your First Autoship Order!
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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
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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
Sepnd $100 on select Pharmacy, Save $20 on your Order!
Save 35% On Your First Autoship Order!
+ 1 more
Sentinel Flavor Tabs for Dogs 26-50 lbs Yellow
(0)
$60.99
Sign In & Enjoy Free Shipping Over $49
NexGard Plus Chewable Tablets for Dogs - 4-8 lbs, 1M, Orange Box
(0)
$42.99
Sepnd $100 on select Pharmacy, Save $20 on your Order!
Save 35% On Your First Autoship Order!
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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: