Heartworms can have severe consequences on pet health if left unchecked and untreated. The good news is that heartworm disease is reasonably easy to prevent. We offer a variety of monthly heartworm medications and preventative products for both cats and dogs. Make sure you talk to your veterinarian about which option is best for your pet.
How prescriptions work
Eligible for free e-certification with purchase DIROBAN 5X50MG VIALS

DIROBAN 5X50MG VIALS

$304.99

$366.66 Save: 17%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Diroban ™ Melarsomine dihydrochloride (the active ingredient in Diroban) is an organic arsenical chemotherapeutic agent. Melarsomine has a molecular weight of 501.34 and is chemically designate ...Read more »

Made in the USA
Out of stock
Eligible for free e-certification with purchase Advantage Multi for Dogs

Advantage Multi for Dogs

Starting at: $111.48

$123.87 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Advantage Multi(R) for Dogs Advantage Multi for Dogs is a once-a-month topical medication that prevents heartworm disease, treats circulating microfilaria in heartworm positive dogs, kills adul ...Read more »

Made in the USA
All styles are in stock.
Bravecto Plus for Cats

Bravecto Plus for Cats

Starting at: $39.85

$44.28 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Bravecto Plus for Cats Bravecto Plus is a topical solution for cats prescribed by veterinarians to help provide 2 months of protection against fleas, ticks, heartworm and intestinal parasites. ...Read more »

Made in the USA
All styles are in stock.
Heartgard Chewables for Cats - 6 ct

Heartgard Chewables for Cats - 6 ct

Starting at: $36.29

$40.32 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Heartgard Chewables Feline Heartgard is a once-a-month chewable that can protect your cat from the threat of potentially deadly heartworm disease. In a tasty flavor that cats love, Heartgard Ch ...Read more »

Made in the USA
All styles are in stock.
Iverhart Max Soft Chews

Iverhart Max Soft Chews

Starting at: $28.99

$32.21 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Iverhart Max Soft Chews Iverhart Max prevents heartworm disease and treats and controls roundworm, hookworm, and tapeworm infections in dogs in a once-a-month liver-flavored soft chews. Dogs si ...Read more »

Made in the USA
All styles are in stock.
Eligible for free e-certification with purchase Milbeguard Tablet

Milbeguard Tablet

Starting at: $25.24

$28.04 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE MilbeGuard is a broad spectrum parasiticide that contains once-a-month flavored tablets to prevent heartworm disease, control adult hookworm infection, and remove and control adult roundworms a ...Read more »

All styles are in stock.
Selarid Topical

Selarid Topical

Starting at: $23.74

$27.99 Save: 15%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Selarid Topical for Dogs and Cats Selamectin, the active ingredient in Selarid, is a macrocyclic lactone compound. These compounds effectively prevent the development of adult heartworms when a ...Read more »

Made in the USA
All styles are in stock.
Eligible for free e-certification with purchase Simparica TRIO Chewable

Simparica TRIO Chewable

Starting at: $23.49

$26.10 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Simparica Trio Chewable Simparica Trio makes it simple to deliver the protection every best friend deserves. Simparica Trio is the first monthly chewable to protect dogs against heartworm disea ...Read more »

Made in the USA
Some styles are in stock.
Trifexis Chewable Tablets for Dogs

Trifexis Chewable Tablets for Dogs

Starting at: $17.64

$19.99 Save: 12%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Trifexis(R) Chewable Tablets for Dogs Trifexis is a monthly, chewable tablet for dogs that kills fleas, prevents heartworm disease, and treats and controls adult hookworm, roundworm, and whipwo ...Read more »

Made in the USA
All styles are in stock.
Revolution

Revolution

Starting at: $17.14

$29.68 Save: 42%

Prescription items are NON-RETURNABLE and NON REFUNDABLE THIS ITEM CAN ONLY BE SHIPPED VIA UPS GROUND! Revolution Canine Revolution provides broad spectrum protection against most internal and external parasites in dogs six weeks of age or older. It ...Read more »

Made in the USA
All styles are in stock.
Revolution for Cats

Revolution for Cats

Starting at: $16.14

$27.56 Save: 41%

Prescription items are NON-RETURNABLE and NON REFUNDABLE THIS ITEM CAN ONLY BE SHIPPED VIA UPS GROUND! REVOLUTION FELINE REVOLUTION provides broad spectrum protection against most internal and external parasites in cats eight weeks of age or older. I ...Read more »

Made in the USA
All styles are in stock.
Revolution for Puppies and Kittens

Revolution for Puppies and Kittens

Starting at: $14.14

$24.99 Save: 43%

Prescription items are NON-RETURNABLE and NON REFUNDABLE THIS ITEM CAN ONLY BE SHIPPED VIA UPS GROUND! Revolution for Puppies and Kittens Revolution provides broad spectrum protection against most internal and external parasites in puppies and kitten ...Read more »

All styles are in stock.
Eligible for free e-certification with purchase Sentinel Spectrum Chews

Sentinel Spectrum Chews

Starting at: $8.89

$9.88 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Sentinel Spectrum Chewables Sentinel Spectrum is a once-a-month chewable tablet that contains a combination of milbeycin oxime, praziquantel, and lufenuron to prevent and control fleas, heartwo ...Read more »

Made in the USA
All styles are in stock.
Eligible for free e-certification with purchase Sentinel Flavor Tabs for Dogs

Sentinel Flavor Tabs for Dogs

Starting at: $7.69

$9.32 Save: 17%

Prescription items are NON-RETURNABLE and NON REFUNDABLE SENTINEL(R) Flavor Tabs(R) (milbemycin oxime/lufenuron) The palatable once-a-month prescription tablet that prevents heartworm disease and flea populations in dogs and puppies, SENTINEL(R) (mil ...Read more »

Made in the USA
All styles are in stock.
Interceptor Plus for Dogs

Interceptor Plus for Dogs

Starting at: $6.09

$6.77 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Interceptor Plus for Dogs 2-8 lb has product expiration date of 11/21 8-25 lb has product expiration date of 11/21 25-50 lb has product expiration date of 11/21 51-100 lb has product expiration ...Read more »

Made in the USA
All styles are in stock.
Interceptor Chew Tabs

Interceptor Chew Tabs

Starting at: $5.43

$6.66 Save: 18%

Interceptor(R) Flavor Tabs(R) For Dogs and Cats (Rx) (milbemycin oxime) An ideal choice of medication for preventing heartworm disease, Interceptor Heartworm for Dogs and Cats can also control hookworm infection. These flavored tablets also help in r ...Read more »

Made in the USA
Some styles are in stock.
Eligible for free e-certification with purchase Heartgard Plus Chewables

Heartgard Plus Chewables

Starting at: $5.19

$5.77 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE HEARTGARD Plus Chewables for Canines HEARTGARD Plus for dogs is a beef-flavored soft chew administered once a month to protect your dog from the threat of potentially deadly heartworm disease, ...Read more »

Made in the USA
All styles are in stock.
Eligible for free e-certification with purchase Iverhart Plus Dog

Iverhart Plus Dog

Starting at: $4.69

$5.21 Save: 10%

Prescription items are NON-RETURNABLE and NON REFUNDABLE Iverhart Plus(R) Chewable Tablets Iverhart Plus prevents heartworm disease and also controls roundworms and hookworms in dogs in a once-a-month, liver-flavored chewable tablet. Dogs should be t ...Read more »

Made in the USA
All styles are in stock.
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