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Get free standard ground shipping* on orders of $100 or more.

* FREE STANDARD GROUND SHIPPING within the contiguous United States on qualifying orders of $100 or more. Certain items marked free shipping, perishable, drop ship, special order, and orm-d are not included in the $100 total. Handling fee of $1 applies to all orders. Oversize fees are listed on product page. Call for drop ship fees. Express delivery is available upon request. Perishable items (including vaccines and some medications) can only be shipped 2nd day or next day, and are not eligible for free standard ground shipping. Other restrictions may apply.

Puppy & Dog Heartworm Medications

Free Ground Shipping on Heartworm Preventatives

Products (Total Items: 78)
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Heartgard Plus Rx Chewables for Dogs
Sale
$5.49  SALE!  $4.39
In Stock
Free Shipping
Trifexis Chewable Tablets for Dogs, Rx
Average Rating(5)
Only $17.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs
Only $90.99
In Stock
Free Shipping
Tri-Heart Plus Rx
Only $3.67
In Stock
Free Shipping
Revolution Rx for Dogs
Average Rating(2)
Only $42.99
In Stock
Free Shipping
Iverhart Max Rx
Sale
$4.49  SALE!  $3.59
In Stock
Free Shipping
Iverhart Plus Rx
Average Rating(1)
Only $3.79
In Stock
Free Shipping
Sentinel Rx
Average Rating(1)
Only $5.99
In Stock
Free Shipping
Sentinel Spectrum Rx
Only $7.99
In Stock
Free Shipping
Iverhart Max Rx, 6-12 lb, 6 Month Supply
Sale
$21.99  SALE!  $19.79
Out of Stock
Free Shipping
Trifexis Rx Chew Tabs, Pink, 5-10 lbs, Single
Only $17.99
In Stock
Free Shipping
Trifexis Rx Chew Tabs, Orange, 10.1-20 lbs, Single
Only $17.99
In Stock
Free Shipping