Capstar vs NexGard:Which is more popular?
In September 2026, NexGard had more branded searches than Capstar among flea and worm treatment brands in Australia. NexGard had about 43,000 branded searches, while Capstar had 590. NexGard made up 74.2% of all flea and worm treatment brand searches we track, and Capstar accounted for 1%. When we asked ChatGPT and Google AI Overviews about flea and worm treatment brands, NexGard appeared in four of the five answers and Capstar in two. NexGard was mentioned before Capstar in every answer.
Who do people search for more?
NexGard, about 73 searches for every 1 for Capstar
Who does AI mention more?
NexGard, mentioned in 4 of 5 answers, Capstar in 2
Who does AI recommend more?
NexGard, named ahead of Capstar in every answer
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Top flea and worm treatment brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, NexGard was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Capstar was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. NexGard was listed before Capstar in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- NexGard4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Bravecto2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Simparica2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Capstar2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Drontal1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Seresto1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Frontline0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about flea and worm treatment brands
5 answers
Asked ChatGPT
“Which flea and tick treatment should I use for my dog in Australia?”
Asked ChatGPT
“What are the best flea treatments for cats?”
Asked ChatGPT
“What's the best worming tablet for dogs?”
Searched Google, AI Overview
“flea treatment for dogs”
Searched Google, AI Overview
“flea treatment”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in Australia on October 26, 2026.
Is Capstar or NexGard more popular in search?
This chart shows how often people search Google for Capstar and NexGard by name. Each line represents a brand's share of searches for all seven flea and worm treatment brands we track, month by month, from searches in Australia.
Share of searches by month for NexGard, Capstar. The figures are in the table below the chart.
View monthly share of searches table
| Month | NexGard | Bravecto | Frontline | Drontal | Simparica | Capstar | Seresto |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 73.1% | 11.7% | 6.4% | 2.8% | 4.3% | 1% | 0.69% |
| Nov 2025 | 73.4% | 11.8% | 6.4% | 3.4% | 3.4% | 1.1% | 0.57% |
| Dec 2025 | 73% | 11.7% | 6.3% | 3.5% | 3.5% | 1.3% | 0.84% |
| Jan 2026 | 73.2% | 11.2% | 6% | 3.3% | 3.9% | 1.5% | 0.81% |
| Feb 2026 | 74.6% | 9.7% | 6.4% | 3.5% | 3.5% | 1.6% | 0.58% |
| Mar 2026 | 72% | 11% | 7.4% | 3.3% | 3.9% | 1.8% | 0.65% |
| Apr 2026 | 71.9% | 11.5% | 7.7% | 3.4% | 3.4% | 1.5% | 0.55% |
| May 2026 | 74.2% | 9.7% | 7.9% | 3.5% | 2.9% | 1.3% | 0.46% |
| Jun 2026 | 70.6% | 10.8% | 8.8% | 3.9% | 3.9% | 1.4% | 0.51% |
| Jul 2026 | 75.6% | 9.9% | 6.5% | 3.6% | 2.9% | 1.1% | 0.47% |
| Aug 2026 | 74.8% | 9.3% | 7.6% | 3.4% | 3.4% | 1% | 0.45% |
| Sep 2026 | 74.2% | 11.4% | 6.2% | 3.3% | 3.3% | 1% | 0.67% |
How has the Capstar and NexGard comparison changed over the last 12 months?
3 findings
- NexGard was ahead of Capstar in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Capstar’s share of searches among flea and worm treatment brands in Australia held steady at 1%, and its estimated monthly branded searches held steady at 590.
- Across the 12 months ending September 2026, NexGard’s share of searches among flea and worm treatment brands in Australia moved from 73.1% to 74.2%, and its estimated monthly branded searches moved from 41.2K to 43K.
How did search popularity change for Australia flea and worm treatment brands in September 2026?
1 change
In September 2026, NexGard lost share of searches among flea and worm treatment brands in Australia, from 74.8% to 74.2%.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Capstar’s and NexGard’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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