Monthly heartworm prevention your large dog will actually look forward to.

HeartGard is the #1 vet-recommended heartworm prevention brand — and for good reason. Each real-beef chewable is something most dogs treat as a reward rather than a medication, making monthly dosing effortless. The Brown pack is formulated for large dogs weighing 51 to 100 lbs, delivering reliable protection against heartworm disease with every monthly chew.

What HeartGard Protects Against

• ✔ Heartworm disease — prevents infection caused by Dirofilaria immitis
• ✔ Roundworm — treats and controls Toxocara canis and Toxascaris leonina
• ✔ Hookworm — treats and controls Ancylostoma caninum and Uncinaria stenocephala

A Chew They'll Actually Take

Compliance is one of the biggest challenges with parasite prevention — especially with larger dogs who can be harder to medicate. HeartGard's real-beef chewable formula solves that — no hiding pills in food, no wrestling matches. Just hand it over and done.

How to Give HeartGard

Administer one chewable tablet once a month, every month. HeartGard works by eliminating heartworm larvae deposited by mosquitoes during the previous 30 days. Year-round treatment is recommended even in cooler climates, as heartworm-carrying mosquitoes can be active in unexpected seasons.

Genuine HeartGard. No Prescription Required.

Smartway Pet Supplies stocks only authentic, manufacturer-sourced HeartGard. Order online and receive it directly at your door — no vet visit needed.

Suitable For: Dogs 51–100 lbs (Brown Pack) | Active Ingredient: Ivermectin & Pyrantel | Dosing: Once monthly | Format: Real-beef chewable