• HeartGard Plus Small Dogs 11kg Blue – front of pack
  • HeartGard Plus Chewables for Small Dogs up to 25 lbs 11 kg - Blue – back of pack
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HeartGard Plus Chewables for Small Dogs up to 25 lbs (11 kg) – Blue
$59.00 USD
$59.00 USD $59.00 USD
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  • ✔ Genuine branded product (sealed & in-date)
  • ✔ Ships from Australia with tracked delivery
  • ✔ No prescription required
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Size

Description

HeartGard Plus Chewables for Small Dogs up to 25 lbs (up to 11 kg) – Heartworm & Worm Prevention (Blue)

HeartGard Plus Chewables for Small Dogs deliver monthly heartworm prevention plus treatment for common intestinal worms in a soft, real beef chew most dogs eat like a treat. Specifically dosed for small dogs up to 25 lbs (up to 11 kg), HeartGard Plus (Blue) protects against heartworm disease and treats roundworm and hookworm infections with one chew, once a month.

What HeartGard Plus Protects Against

  • Heartworm: Prevents heartworm disease, transmitted by infected mosquitoes — potentially fatal if untreated.
  • Roundworm: Treats and controls Toxocara canis and Toxascaris leonina infections.
  • Hookworm: Treats and controls Ancylostoma caninum and Uncinaria stenocephala infections.

Not covered: Fleas, ticks, tapeworm, or whipworm. For flea and tick protection, pair HeartGard Plus with NexGard, Bravecto, or a similar product.

Why Small-Dog Owners Choose HeartGard Plus

  • #1 vet-recommended brand: HeartGard Plus has been the most-prescribed heartworm preventative in the US for decades. Reliable, well-studied, trusted.
  • Real beef chew: Made with real beef (not beef-flavored) — most dogs eat it eagerly as a treat. Soft texture is easy for small mouths.
  • Once-a-month dosing: Simple to remember — same date each month.
  • Treats intestinal worms too: Bonus coverage for the two most common intestinal worms means you don’t need a separate wormer for routine prevention.
  • Sized for small dogs: The Blue pack is dosed for dogs up to 25 lbs — if your dog crosses 25 lbs, move to Green (26–50 lbs).

How HeartGard Plus Works

HeartGard Plus combines two active ingredients:

  • Ivermectin targets immature heartworm larvae (microfilariae) before they can mature into adult heartworms. Stopping the larvae interrupts heartworm disease before it establishes.
  • Pyrantel pamoate paralyzes and clears adult roundworm and hookworm infections in the intestinal tract.

Who It’s For

  • Small dogs weighing up to 25 lbs (up to 11 kg)
  • Puppies and adult dogs 6 weeks of age and older (HeartGard Plus is approved younger than most preventatives)
  • Healthy dogs — talk to your vet before use in Collies or other herding breeds (see safety note below)

How to Give HeartGard Plus

  1. Give one chew per month, on the same date each month, year-round.
  2. Offer directly as a treat — most dogs love the real beef flavor.
  3. Make sure your dog chews and swallows the full chew (don’t let them stash it or spit it out).
  4. If your dog is starting heartworm prevention for the first time at 7 months or older, your vet may recommend a heartworm test first.

Safety & Side Effects

HeartGard Plus is well tolerated by most dogs. Mild, short-lived side effects can include vomiting, diarrhea, lethargy, or reduced appetite.

Important note for Collie / herding-breed owners: Some Collies, Australian Shepherds, Shetland Sheepdogs, Old English Sheepdogs, and related herding breeds carry the MDR1 gene mutation, which can make them sensitive to ivermectin at high doses. At the dose used in HeartGard Plus, the product is considered safe for these breeds — but if your dog has tested positive for MDR1 or you suspect they might, talk to your veterinarian before starting.

Product Details

  • Brand: HeartGard Plus (Boehringer Ingelheim)
  • For: Dogs
  • Weight range: Up to 25 lbs (up to 11 kg)
  • Pack color: Blue
  • Form: Real-beef soft chew (oral)
  • Active ingredients: Ivermectin + Pyrantel pamoate
  • Minimum age: 6 weeks
  • Pack size: 6 chews (6 months of protection)
  • Coverage: Heartworm prevention + roundworm and hookworm treatment

Helpful Links

Fast shipping across the US & Canada — no prescription required. Use only as directed on the packaging. Information provided for general reference; speak with your veterinarian for medical advice specific to your dog.

 

Frequently asked questions

At what age can I start HeartGard Plus on my puppy?

HeartGard Plus is approved for puppies from 6 weeks of age — younger than most other preventatives. There’s no minimum weight requirement, but check the pack size matches your puppy’s current weight.

My dog is just under 25 lbs — is Blue still the right pack?

Yes — the Blue pack covers dogs from very small puppies up to 25 lbs. If your dog reaches 26 lbs, switch to the Green pack (26–50 lbs). Don’t stay on Blue past 25 lbs — underdosing reduces heartworm protection effectiveness.

Do I need a heartworm test before starting HeartGard Plus?

For puppies starting before 7 months of age, no test is typically needed. For older dogs being newly started on heartworm prevention, your vet may recommend a heartworm test first to confirm your dog isn’t already infected — standard practice in the US and Canada.

What if my dog spits out or doesn’t fully eat the chew?

Make sure the full chew is consumed for proper dosing. If your dog spits it out within 5–10 minutes, you can offer a replacement. If they’ve eaten part of it, contact your vet for guidance on re-dosing.

Do I need a prescription to buy HeartGard Plus?

No — SmartWay Pet Supplies ships HeartGard Plus over the counter to customers across the US and Canada. No prescription or vet authorization required at checkout.

Is HeartGard Plus safe for Collies and other herding breeds?

At the dose used in HeartGard Plus, the product is generally considered safe for Collies, Australian Shepherds, Shetland Sheepdogs, and other herding breeds. If your dog has tested positive for the MDR1 gene mutation, or you’re concerned about ivermectin sensitivity, talk to your veterinarian before starting.