Heartgard Plus Chewables for Dogs (ivermectin/pyrantel) – 0-25 lbs
Monthly protection. Real-beef taste. Vet-recommended. Heartgard Plus is a once-a-month chewable that guards small dogs (0–25 lbs) against heartworm disease while also treating and controlling hookworms and roundworms. ⚠️ Prescription required Federal law restricts this drug to use by or...
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Monthly protection. Real-beef taste. Vet-recommended.
Heartgard Plus is a once-a-month chewable that guards small dogs (0–25 lbs) against heartworm disease while also treating and controlling hookworms and roundworms.
⚠️ Prescription required
Federal law restricts this drug to use by or on the order of a licensed veterinarian. A current prescription and a negative heartworm test are required.
Full ingredient and material breakdown, sourcing region, and third-party testing notes are printed on the packaging and listed here at launch.
Measure at the widest point and size up if you land between two sizes. Free exchanges within 30 days if the fit is wrong.
Free shipping on orders over $49, otherwise a flat $5.95. Most orders arrive in 2–5 business days. Unused items can be returned for 30 days.
Product details
Why pet parents choose Heartgard Plus
Heartworm disease prevention
Eliminates the tissue stage of heartworm larvae for a full 30 days after infection, stopping adult heartworms before they can develop.
Hookworm & roundworm control
Every monthly dose also treats and controls common intestinal parasites, including roundworms and hookworms.
Real-beef chew
A palatable, beef-flavoured chewable that most dogs accept willingly — no pilling battles required.
Trusted, proven protection
Backed by decades of clinical use, Heartgard has been the heartworm preventive that veterinarians recommend most, with billions of doses given to dogs across the country.
How to give it
- Remove one chewable at a time from the foil-backed blister card and return the rest to the box to protect it from light.
- Offer the chew by hand, or mix it into a small amount of food — most dogs take it happily on its own.
- Let your dog chew rather than swallow it whole; break it into pieces first if your dog tends to gulp treats.
- Watch your dog for a few minutes afterwards to make sure the full dose was eaten. If any is lost or spat out, redosing is recommended.
- Give one chewable every 30 days, year-round, on or about the same day each month.
Specifications
| For | Dogs and puppies 6 weeks or older, 0–25 lbs |
| Active Ingredients | 68 mcg ivermectin, 57 mg pyrantel (as pamoate salt) per chewable |
| Flavour | Real beef |
| Dosing | One chewable every 30 days |
| Available Sizes | 6-count (6-month) or 12-count (12-month) supply |
| Storage | Store between 68°F–77°F; protect from light |
⚠️ Important safety information
- All dogs should be tested for existing heartworm infection before starting Heartgard Plus, which is not effective against adult heartworms.
- Digestive and neurologic side effects, along with itching, have been reported following use.
- Choking or intestinal obstruction has been reported in dogs that swallow the chew whole — break it into pieces if your dog tends to gulp treats.
- Keep this and all medications out of reach of children and other pets. If a person accidentally ingests this product, contact a physician immediately.
- Talk to your veterinarian before starting any heartworm prevention programme.