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Flea & tick · Topical flea treatment
Advantage II Flea Treatment and Prevention for Large Cats, 2 Doses
Best for: Large cats that need fleas gone within 12 hours. Skip if: your cat is not a large cat, or monthly schedules always slip.
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- Specs from the listing
- Research-based — not tested in person
- Checked Nov 2026
Paid link. We may earn a commission.
Advantage II at a glance
From the listing
- Topical flea treatment for large cats
- Two monthly doses in the pack
- Starts killing fleas within 12 hours
- Waterproof once it has dried
How it works
Working in 12 hours
It starts killing fleas within 12 hours of application.
Advantage II in Flea & tickWhat we like
- Starts killing fleas within 12 hours of application
- Topical — no collar for the cat to wear
- Waterproof once it has dried
- Dosed for large cats specifically
What to know
- Monthly doses — you have to remember the schedule
- The spot must stay dry until the application dries
- This size is only for large cats — smaller cats need their own version
The verdict
Best for: Large cats that need fleas gone within 12 hours.
Skip if: Your cat is not a large cat, or monthly schedules always slip.
Every fact above comes from the listing and the brand's specifications; anything the brand states about its own product is marked as a claim, not our finding. When you are ready, the price lives on Amazon — we don't print it here because it changes.
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Good questions
Questions, answered honestly
Who is Advantage II best for?
Large cats that need fleas gone within 12 hours. And the honest skip-if: your cat is not a large cat, or monthly schedules always slip.
How much does Advantage II cost?
We never print prices — they change too often to stay honest. Use the Amazon button on this page to see today's price. The link is an affiliate link, marked as paid.
Have you tested Advantage II in person?
No — this review is research-based. Every fact comes from the product listing and the brand's specifications, brand statements are marked "brand claim", and the score is calculated from the specifications only.
