heart worm medicine for small dogs
Skip itA deep review moat (9,797 avg reviews) — this niche doesn't clear our bar today.
Returns
Incredible0.2%return rate — above 6% kills the launch gate
Avg price
Incredible$33.24avg listing price — sweet spot $15–$100
Price range
Great$12.35–$57.72cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.6%search→purchase rate — share of searches ending in a sale
Market size
Okay$196K$196K/yr · 89K searches
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Growth
Okay+1.6%90-day search growth — must beat 0% to launch
Brand share
Bad91%top-5 brand share — brand-locked demand
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad9,797.11avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, heart worm medicine for small dogs is a $196K/yr Amazon United States market (89K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jan–May–Jul–Nov. Verdict: Skip it — 47/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
heart worm medicine for small dogs market data
- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- $166K–$199K
- units × avg price
- Launch success
- —
- 1 of 1 new (360d)
- Conversion rate
- 6.6%
- Avg BSR
- #9
- Page quality
- 0%
- Prime
- 56%
- Sponsored
- 72%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 144 days
Competition & brand share
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
10 flat
Sellers
51
Top-5 brand share
91%
Top 20: 100%
Top-5 click share
67%
Top 20: 100%
Open market
7%
- TRI-HEART PLUS32%
- Durvet20%
- HEARTGARD18%
- PetArmor14%
- Nexgard7%
- Simparica Trio2%
- Open — no brand owns it (4 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 63 weeks — +1.6% search growth over the last 90 days.Peak months: Jan, May, Jul, Nov · busiest ÷ quietest = 2.9×
Top heart worm medicine for small dogs search terms
- heart worm medicine for small dogs31K/yr
- heartworm prevention for small dogs10K/yr
- durvet triple wormer for dogs6K/yr
- triple wormer for dogs8K/yr
- tri heart plus for dogs up to 25 lbs5K/yr
- heartworm prevention for dogs small6K/yr
- tri heart plus3K/yr
- triheart plus for dogs 0-25 lbs heartworm3K/yr
- heartworm prevention for puppies4K/yr
- small dog heartworm prevention5K/yr
Top heart worm medicine for small dogs products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TRI-HEART PLUS Chewable Tablet for Dogs up to 25 lbs (Blue Box) 6 Chewable Tablets 6-Month Supply
TRI-HEART PLUS$29.254.8★334 rev
HEARTGARD Plus (ivermectin/pyrantel) Real-Beef Chewables for Dogs up to 25 lbs (Blue Box) 1 Month Supply of Chews (Heartworm Disease Preventive)
HEARTGARD$12.724.9★401 rev
Durvet 12-Pack Triple Wormer Tablets for Puppies and Small Dogs
Durvet$24.964.6★5,488 rev
PetArmor 7 Way De-Wormer for Dogs Oral Treatment of Tapeworm Roundworm & Hookworm Dewormer for Puppies & Small Dogs (6-25 lbs) Worm Remover (Praziquantel & Pyrantel Pamoate) 2 Flavored Chewables
PetArmor$13.694.6★33,281 rev
Durvet Triple Wormer for Medium and Large Dogs
Durvet$51.824.6★5,819 rev
Newest
by launch date
Luckyond Pyrantel Pamoate and Praziquantel De-wormer Tablet for Medium and Large Dogs Chewable Formula
Luckyond$39.8859 rev
NexGard Plus (afoxolaner moxidectin and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables 4-8 lbs. (Orange) 1 Chew (1 Month Supply)
Nexgard$43.4628 rev
Simparica Trio (sarolaner moxidectin and pyrantel chewable Tablets) Chewables for Dogs 12 mg/tab 11.1-22 lbs (Caramel) 1 Tablet
Simparica Trio$39.08224 rev
HEARTGARD Plus (ivermectin/pyrantel) Real-Beef Chewables for Dogs up to 25 lbs (Blue Box) 1 Month Supply of Chews (Heartworm Disease Preventive)
HEARTGARD$12.72401 rev
HEARTGARD Plus (ivermectin/pyrantel) Real-Beef Chewables for Dogs up to 25 lbs (Blue Box) 6 Month Supply of Chews (Heartworm Disease Preventive)
HEARTGARD$57.72401 rev
Trending
90-day click momentumLuckyond Pyrantel Pamoate and Praziquantel De-wormer Tablet for Medium and Large Dogs Chewable Formula
Luckyond$39.884.4★
NexGard Plus (afoxolaner moxidectin and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables 8.1-17 lbs. (Green) 1 Chew (1 Month Supply)
Nexgard$44.404.4★
De-Wormer for Dogs Oral Treatment for Tapeworm Roundworm & Hookworm in Large Dogs & Puppies (Over 25 lbs) Worm Remover (Praziquantel & Pyrantel Pamoate) 50 Tablets
VivaElixir$39.804.6★
TRI-HEART PLUS Chewable Tablet for Dogs 26-50 lbs (Green Box) 6 Chewable Tablets 6-Month Supply
TRI-HEART PLUS$37.684.8★
NexGard Plus (afoxolaner moxidectin and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables 4-8 lbs. (Orange) 1 Chew (1 Month Supply)
Nexgard$43.464.4★
What buyers say about heart worm medicine for small dogs
What buyers praise and complain about, mined from review topics.What buyers love
“Good Value”
“Excellent product that delivers”
“Works as described”
“Ease of use”
“Great for your pet”
“Easy for the dog to taste”
“Easy to give with food”
“I saw improvement within a short time”
“Very effective”
“My dogs love the flavor”
What buyers complain about
“Doesn't work”
“The only thing I didn't like was the price”
“Not long lasting”
“Allergic Reaction”
“no info on this”
“My Shih Tzus always get an upset stomach - diarrhea”
“The instructions are kinda confusing”
“No smell”
“The dogs didn't like the taste refused to take it”
“Same ingredients as Heartguard 1/2 the price”
Top return reasons
Common questions
- Is heart worm medicine for small dogs profitable to sell on Amazon United States?
- The niche generates $196K/yr across 18 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +1.6%. Flapen's verdict: Skip it (47/100).
- How competitive is the heart worm medicine for small dogs niche?
- 10 brands and 51 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 91% of demand.
- What do buyers complain about in heart worm medicine for small dogs?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Durability. The return rate is 0.2%.
- When does demand for heart worm medicine for small dogs peak?
- Demand peaks in Jan–May–Jul–Nov; the busiest month runs 2.9× the quietest.
- What does it cost to enter the heart worm medicine for small dogs niche?
- Listings span $12.35–$57.72; the average listing price is $33.24 (sweet spot $15–$100). The average incumbent carries 9,797 reviews — the moat a new listing must climb.