Dewormers & Parasite Care

(69 results)
Simparica Trio Chewable Tablets for Dogs - 44.1-88 lbs, Green Box
2 sizes
(50)
$44.63 - $223.81
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Simparica Trio Chewable Tablets for Dogs - 22.1-44 lbs, Blue Box
2 sizes
(22)
$43.48 - $217.48
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Simparica Trio Chewable Tablets for Dogs - 11.1-22 lbs, Caramel Box
2 sizes
(17)
$40.05 - $200.31
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Simparica Trio Chewable Tablets for Dogs - 88.1-132 lbs, Brown Box
2 sizes
(5)
$45.20 - $225.50
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NexGard Plus Chewable Tablets for Dogs - 33.1-66 lbs, Purple Box
3 sizes
(13)
$47.79 - $235.59
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Heartgard Plus Chewables For Dogs 51-100 lbs Brown
3 sizes
(18)
$19.49 - $163.09
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Simparica Trio Chewable Tablets for Dogs - 5.6-11 lbs, Purple Box
2 sizes
(7)
$39.47 - $198.05
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NexGard Plus Chewable Tablets for Dogs - 66.1-132 lbs, Red Box
3 sizes
(13)
$48.99 - $242.49
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NexGard Plus Chewable Tablets for Dogs - 17.1-33 lbs, Gold Box
3 sizes
(12)
$46.49 - $228.39
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Heartgard Plus Chewables For Dogs 1-25 lbs Blue
3 sizes
(15)
$12.79 - $107.09
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Heartgard Plus Chewables For Dogs 26-50 lbs Green
3 sizes
(14)
$16.19 - $135.69
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NexGard Plus Chewable Tablets for Dogs - 8.1-17 lbs, Green Box
3 sizes
(12)
$45.09 - $214.19
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Trifexis Heartworm Prevention, Treats & Controls Flea Infestations + 4 Other Worms, Dogs 60.1-120lbs
2 sizes
(6)
$26.81 - $177.49
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Trifexis Heartworm Prevention, Treats & Controls Flea Infestations + 4 Other Worms, Dogs 10.1-20lbs
2 sizes
(5)
$24.50 - $162.19
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Interceptor Plus Prevention for Heartworm + 4 Other Worms for Dogs 50.1-100 lbs - 12 Chews, 12-Month
3 sizes
(17)
$15.99 - $171.35
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Trifexis Heartworm Prevention, Treats & Controls Flea Infestations + 4 Other Worms, Dogs 20.1-40 lbs
2 sizes
(1)
$25.11 - $166.29
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Tri-Heart Plus Chewable Tablets for Dogs 51-100 lbs Brown
(3)
$52.99
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Simparica Trio Chewable Tablets for Dogs - 2.8-5.5 lbs, Gold Box
2 sizes
(1)
$38.90 - $194.04
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Trifexis Heartworm Prevention, Treats & Controls Flea Infestations + 4 Other Worms, Dogs 40.1-60 lbs
2 sizes
(8)
$26.38 - $174.59
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Advantage Multi Dog 6-in-1 Heartworm Prevention - Kills Fleas - Dogs 55.1-88 lbs. - 6-Month Supply
2 sizes
(2)
$21.72 - $141.19
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Advantage Multi Dog 6-in-1 Heartworm Prevention - Kills Fleas - Dogs 20.1-55 lbs. - 6-Month Supply
2 sizes
(1)
$21.62 - $140.49
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Advantage Multi Dog 6-in-1 Heartworm Prevention - Kills Fleas - Dogs 9.1-20 lbs. - 6-Month Supply
2 sizes
(5)
$21.42 - $139.19
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Revolution Topical for Dogs 10.1-20 Brown - 3 Month or 6 Month Supply
2 sizes
(3)
$103.93 - $182.92
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NexGard Plus Chewable Tablets for Dogs - 4-8 lbs, Orange Box
2 sizes
(10)
$113.49 - $210.59
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MilbeGuard Flavored Tablets for Dogs and Cats, 6 Month Supply Dogs 51-100 lbs / Cats 12.1-25 lbs Red
(4)
$44.89
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Revolution Topical for Dogs 20.1-40 Red  - 3 Month or 6 Month Supply
2 sizes
(1)
$105.73 - $193.05
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Revolution Topical for Dogs 5.1-10 Purple - 3 Month or 6 Month Supply
2 sizes
(0)
$100.33 - $178.20
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Trifexis Heartworm Prevention, Treats & Controls Flea Infestations + 4 Other Worms, Dogs 5-10 lbs.
2 sizes
(1)
$23.28 - $154.09
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Tri-Heart Plus Chewable Tablets for Dogs 26-50 lbs Green
(3)
$38.99
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Revolution Topical for Dogs 40.1-85 Teal - 3 Month or 6 Month Supply
2 sizes
(2)
$106.88 - $193.07
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Interceptor for Dogs and Cats - 51-100 lbs Dogs / 12.1-25 lbs Cats - 6-Month Supply
(2)
$78.49
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NexGard Plus Chewable Tablets for Dogs - 4-8 lbs, 1M, Orange Box
(10)
$44.29
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Senergy (selamectin) Topical for Dogs 85.1 - 130 lbs, 3 doses
(0)
$67.93
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Senergy (selamectin) Topical for Dogs 40.1 - 85 lbs, 3 doses
(0)
$51.94
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Senergy (selamectin) Topical for Dogs 20.1 - 40 lbs, 3 doses
(0)
$51.87
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Senergy (selamectin) Topical for Dogs 10.1 - 20 lbs, 3 doses
(0)
$49.40
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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: