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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.

Heartworm Preventatives


Learn more >> Heartworm Preventative Comparison Chart

FREE GROUND SHIPPING on all Heartworm Preventatives!

Products (Total Items: 91)
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Advantage Multi for Cats Rx
Only $87.99
In Stock
Free Shipping
Advantage Multi Rx for Cats, 5.1-9 lbs, 6 Month (Orange)
Only $87.99
In Stock
Free Shipping
Advantage Multi Rx for Cats, 9.1-18 lbs, 6 Month (Purple)
Only $87.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs
Only $90.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs, 20.1-55 lbs, 6 Month (Red)
Only $90.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs, 3-9 lbs, 6 Month (Green)
Only $90.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs, 55.1-88 lbs, 6 Month (Blue)
Only $90.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs, 88.1-110 lbs, 6 month (Brown)
Only $97.99
In Stock
Free Shipping
Advantage Multi Rx for Dogs, 9.1-20 lbs, 6 Month (Teal)
Only $90.99
In Stock
Free Shipping
Heartgard Plus Rx Chewable, Blue, 0-25 lbs, Single
Sale
$5.49  SALE!  $4.39
In Stock
Free Shipping
Heartgard Plus Rx Chewable, Brown, 51-100 lbs, Single
Sale
$8.49  SALE!  $7.64
In Stock
Free Shipping
Heartgard Plus Rx Chewable, Green, 26-50 lbs, Single
Sale
$6.99  SALE!  $6.29
In Stock
Free Shipping
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