Heartworm

(79 results)
Simparica Trio Chewable Tablets for Dogs, 44.1-88 lbs (Green), 1 or 6 Month Supply
2 sizes
(52)
$44.63
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Simparica Trio Chewable Tablets for Dogs, 22.1-44 lbs (Blue), 1 or 6 Month Supply
2 sizes
(22)
$43.49
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Simparica Trio Chewable Tablets for Dogs, 11.1-22 lbs (Caramel), 1 or 6 Month Supply
2 sizes
(20)
$40.05
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NexGard Plus Chewable Tablets for Dogs 33.1-66 lbs (Purple Box) - 1, 3, or 6 Tablets
3 sizes
(61)
$47.79
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Simparica Trio Chewable Tablets for Dogs, 5.6-11 lbs (Purple), 1 or 6 Month Supply
2 sizes
(8)
$39.47
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Heartgard Plus Chew for Dogs - 51-100 lbs (Brown) - 1, 6, or 12 Month Supply
3 sizes
(21)
$19.59
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Simparica Trio Chewable Tablets for Dogs, 88.1-132 lbs (Brown), 1 or 6 Month Supply
2 sizes
(6)
$45.20
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NexGard Plus Chewable Tablets for Dogs 66.1-132 lbs (Red Box) - 1, 3, or 6 Tablets
3 sizes
(60)
$48.99
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Heartgard Plus Chew for Dogs - 1-25 lbs (Blue) - 1, 6, or 12 Month Supply
3 sizes
(15)
$12.79
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NexGard Plus Chewable Tablets for Dogs 17.1-33 lbs (Gold Box) - 1, 3, or 6 Tablets
3 sizes
(59)
$46.49
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Credelio Quattro/ Credelio Quattro-CA1 Chewable Tablets for Dogs, 50.1-100 lbs, 1 or 6 Month Supply
2 sizes
(2)
$42.39
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Credelio Quattro/ Credelio Quattro-CA1 Chewable Tablets for Dogs, 25.1-50 lbs, 1 or 6 Month Supply
2 sizes
(0)
$41.19
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NexGard Plus Chewable Tablets for Dogs 8.1-17 lbs (Green Box) - 1, 3, or 6 Tablets
3 sizes
(60)
$45.09
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Heartgard Plus Chew for Dogs - 26-50 lbs (Green) - 1, 6, or 12 Month Supply
3 sizes
(14)
$16.19
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Credelio Quattro/ Credelio Quattro-CA1 Chewable Tablets for Dogs, 12.1-25 lbs, , 1 or 6 Month Supply
2 sizes
(0)
$37.99
$42.49
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Trifexis Chewable Tablet for Dogs, 60.1-120lbs (Brown), 1 or 6 Month Supply
2 sizes
(7)
$29.58
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Interceptor Plus Chew for Dogs - 50.1-100lbs (Blue) - 1, 6, or 12 Month Supply
3 sizes
(30)
$15.99
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Trifexis Chewable Tablet for Dogs, 10.1 -20 lbs (Orange), 1 or 6 Month Supply
2 sizes
(5)
$27.03
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+ 1 more
Interceptor Plus Chew for Dogs - 25.1-50 lbs (Yellow) - 1, 6, or 12 Month Supply
3 sizes
(10)
$13.59
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Trifexis Chewable Tablet for Dogs, 40.1-60 lbs (Blue), 1 or 6 Month Supply
2 sizes
(8)
$29.10
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Revolution (selamectin) Topical for Dogs - 10.1-20 lbs (Brown) - 3 or 6 Month Supply
2 sizes
(4)
$103.93
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Credelio Quattro/ Credelio Quattro-CA1 Chewable Tablets for Dogs, 6.1-12 lbs, 1 or 6 Month Supply
2 sizes
(0)
$37.49
$42.49
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Simparica Trio Chewable Tablets for Dogs, 2.8-5.5 lbs (Gold), 1 or 6 Month Supply
2 sizes
(1)
$38.90
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Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
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Interceptor Plus Chew for Dogs - 8.1-25 lbs (Green) - 1, 6, or 12 Month Supply
3 sizes
(9)
$12.39
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Tri-Heart Plus Chewable Tablets for Dogs 51-100 lbs Brown, 6 Chewable Tablets (6 month supply)
(3)
$52.99
Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
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Advantage Multi Topical Solution for Dogs, 55.1-88 lbs (Blue), 1 or 6 Month Supply
2 sizes
(2)
$23.53
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Advantage Multi Topical Solution for Dogs, 20.1-55 lbs (Red), 1 or 6 Month Supply
2 sizes
(1)
$23.42
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Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
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Revolution (selamectin) Topical for Dogs - 5.1-10 (Purple) - 3 or 6 Month Supply
2 sizes
(0)
$100.33
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Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
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Sentinel Flavor Tabs for Dogs 51-100 lbs (White Box), 6 Tablets (6-Month Supply)
(1)
$76.99
Save 15% On Your First Autoship Order!
Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
+ 1 more
NexGard Plus Chewable Tablets for Dogs 4-8 lbs (Orange Box) - 1, 3, or 6 Tablets
3 sizes
(57)
$44.29
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MilbeGuard Flavored Tablets for Dogs & Cats - Dog 51-100 lbs, Cat 12.1-25 lbs (Red) 6 Month Supply
(5)
$43.79
Save 50% on prescriptions online with code: RX50 thru 11/11
Save 35% On Your First Autoship Order!
+ 1 more
Advantage Multi Topical Solution for Dogs, 9.1-20 lbs (Teal), 1 or 6 Month Supply
2 sizes
(6)
$23.20
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Trifexis Chewable Tablet for Dogs, 20.1-40 lbs (Green), 1 or 6 Month Supply
2 sizes
(1)
$27.72
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Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
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Revolution (selamectin) Topical for Dogs - 40.1-85 (Teal) - 3  or 6 Month Supply
2 sizes
(2)
$109.99
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Revolution (selamectin) Topical for Dogs - 20.1-40 (Red)  - 3 or 6 Month Supply
2 sizes
(1)
$105.73
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Trifexis Chewable Tablet for Dogs, 5-10 lbs (Magenta), 1 or 6 Month Supply
2 sizes
(1)
$25.68
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Tri-Heart Plus Chewable Tablets for Dogs 26-50 lbs Green, 6 Chewable Tablets (6 month supply)
(4)
$38.99
Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
Sign In & Enjoy Free Shipping Over $49
Tri-Heart Plus Chewable Tablets for Dogs 1-25 lbs Blue, 6 Chewable Tablets (6 month supply)
(3)
$29.99
Earn 50% back in savings (that's 25X points) on your first Autoship order of prescription products
Sign In & Enjoy Free Shipping Over $49
Advantage Multi Topical Solution for Dogs,  88.1-110 lbs (Brown), 1 or 6 Month Supply
2 sizes
(5)
$23.63
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Advantage Multi Topical Solution for Dogs, 3-9 lbs (Green), 1 or 6 Month Supply
2 sizes
(5)
$23.10
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Heartworm Disease can be a serious illness for dogs if left untreated. If you suspect your dog may have heartworm disease, make an appointment with your vet as soon as possible. After a visit to the vet has revealed that your dog has, in fact, contracted heartworm disease, your vet may write a prescription for heartworm medications for dogs. The Pharmacy at PetSmart is your go-to for filling prescriptions and carrying out veterinarian treatment plans. 
Pet parents on the search for heartworm medication should consult a vet before implementing any sort of new medication into their pet’s medical regimen. 
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 Heartworm Medication from The Pharmacy at PetSmart. Need to find a vet? We have you covered.
Does your dog have more than one medical concern? The Pharmacy carries many medications other than heartworm medications for dogs, like:  
While you’re here, stock up on all the products your dog needs to live their best life, with PetSmart’s dog supplies. We have a wide variety of dog food, food and water bowls, collars, leashes and harnesses, and dog treats to keep your dog’s tail wagging.