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Advantage II Large Cat Vet-Recommended Flea Treatment & Prevention | Cats Over 9 lbs. | 2-Month Supply

TLDR Review: Advantage II Flea Treatment for Large Cats

By ShopSavvy Team

Published: March 23rd, 2025

Pros

•Rapid efficacy with fleas falling off shortly after application, noticeable within 12 hours.
•Effective preventative treatment with significant reduction in scratching and improved weleing.
•No adverse reactions observed, even when accidentally ingested by the cat.
•Trusted and used by cat owners for over 14 years, highlighting reliability.
•Particularly effective for indoor cats lasting up to 30 days.
•Provides noticeable improvement in cat's comfort and behavior, including better sleep.
•Affordable and offers a convenient twonth supply.
•Recommended for breaking the flea cycle with consistent use and cleaning.
•Provides significant comfort and reduced stress, especially for elderly cats.

Cons

•Fleas may reappear due to environmental factors and newly hatched eggs; consistent cleaning required.
•Application process can be stressful, especially for large or resistant cats.
•May require complementary treatments for severe infestations effectively.
•Some users reported a decrease in efficacy in humid climates or with longstanding infestations.
•Temporary itching observed within a few days pospplication.
•Efficacy duration can vary, some experiencing only weeks of effectiveness.

Bottom Line

Advantage II Large Cat Flea Treatment is a reliable option for cat owners looking to manage flea prevention, particularly for indoor cats. While it shows rapid efficacy and has a longstanding reputation, certain environments or severe infestations may require additional measures. Make sure to maintain a clean home environment to support the treatment's effectiveness and plan for a potentially challenging application process with your pets.

Lowest at Amazon

$29.98 at Amazon

Lowest at any Popular Retailer

$22.99 at Petco

How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 47 retailers to give you the short version.