Data as of Aug 25, 2026 · Based on 371 AI responses · See how Parse measures this
OTC Health and Pet Medications
Parse
https://parse.gl
Capstar leads, named in 63% of answers, ahead of at 55% and at 53%.
| # | Brand | What AI says | Mention rate |
|---|---|---|---|
| 1 | Frequently recommended for fast-acting relief from active cat flea infestations. | 63% | |
| 2 | 55% | ||
| 3 | 53% | ||
| 4 | Routinely suggested as a long-lasting flea and tick collar alternative. | 52% | |
| 5 | Still mentioned as an OTC flea option, but its citation rate has declined. | 51% | |
| 6 | Rose to become the top-cited brand for pet parasite prevention. | 45% | |
| 7 | 40% | ||
| 8 | 32% | ||
| 9 | Prominently featured as a top-tier, prescription topical for broad-spectrum cat parasite control. | 28% | |
| 10 | 19% | ||
| 11 | A leader in heartworm prevention, frequently cited for its all-in-one products. | 10% | |
| 12 | Still mentioned as an OTC flea option, but its citation rate has declined. | 8% | |
| 13 | 5% | ||
| 14 | 5% | ||
| 15 | 5% | ||
| 16 | 4% | ||
| 17 | 3% | ||
| 18 | 3% | ||
| 19 | 2% | ||
| 20 | 2% | ||
| 21 | 1% | ||
| 22 | <1% | ||
| 23 | <1% | ||
| 24 | <1% | ||
| 25 | <1% |
Who wins on each AI
The same market, seen by two models.
Sources AI cited
petmd.com is the page AI reaches for most here, cited in 77% of analyzed answers.
Mention rate rose from 19% in Oct to 43% in Mar for relevant queries.
Surged from a 3% mention rate in Oct to 41% by Mar.
Overall mention rate dropped from 41% in Oct to 30% by Mar.
Lost its #1 position, falling from a 46% mention rate to 41% between Oct and Mar.
“A general broad-spectrum option among others.” → “Specifically framed as the 'Best Overall' or 'Top-Tier' prescription preventative.”
| Brand | ChatGPT Search | Google AI Mode | Comparison |
|---|---|---|---|
| 77% | 45% | ||
| 55% | 23% | ||
| 32% | 41% | ||
| 55% | 41% | ||
| 27% | 36% |
Across 371 AI responses, Capstar is mentioned most, named in 63% of them, followed by Advantage II (55%) and Bravecto (53%).
Parse measures each brand's mention rate — the share of answers naming it — across 371 AI responses to this market's buyer questions. Answers are collected daily and the ranking is published weekly.
Brands enter the ranking when AI answers mention them. Parse collects answers daily and publishes the re-measured set weekly, so new brands appear as AI starts recommending them.
AI responses have evolved to provide more segmented recommendations based on user needs. While earlier answers mixed various options, models since late 2025 increasingly categorize treatments, highlighting fast-acting oral tablets like Capstar for infestations, prescription topicals like
Revolution Plus for broad protection, and OTC spot-ons like
Advantage II for general prevention.
Brands mentioned
which flea treatment for my cat should I use?
AI responses have evolved to provide more segmented recommendations based on user needs. While earlier answers mixed various options, models since late 2025 increasingly categorize treatments, highlighting fast-acting oral tablets like Capstar for infestations, prescription topicals like
Revolution Plus for broad protection, and OTC spot-ons like
Advantage II for general prevention.
AI models consistently recommend consulting a veterinarian and obtaining a prescription for heartworm medication. Responses consistently highlight a core group of monthly chewables, such as Heartgard Plus for standard prevention, for broader worm coverage, and all-in-one products like Simparica Trio that also cover fleas and ticks.
Brands mentioned
Which dog heartworm meds should I buy?
AI models consistently recommend consulting a veterinarian and obtaining a prescription for heartworm medication. Responses consistently highlight a core group of monthly chewables, such as Heartgard Plus for standard prevention,
Interceptor Plus for broader worm coverage, and all-in-one products like Simparica Trio that also cover fleas and ticks.