Hi. Unfortunately, we’re not able to answer this question. We recommend you contact the seller for more information.

I have use one after 7 days and still see fleas. Why? I never had this problem b 4.

I have the same problem. Fleas have developed a resistance to Frontline, Advantix, and ....... I don't know if anything still works. I've been brushing my dog frequently to remove fleas temporarily.

Is there an expiration date on this product?

lot number. I usually start treating the my dogs(4) on apr. 15th-I live in western ny-and will continue till first hard frost. so I usually use a full box within a year for each dog

Hi. Unfortunately, we’re not able to answer this question. We recommend you contact the seller for more information.

Advantage Bayer Ii Topical Flea Treatment Dogs

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21686 som

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🐾 Stay ahead of fleas—because your small dog deserves big protection!

RAPID ACTION FORMULA - Kills fleas on contact within 12 hours—no biting needed for fleas to die.
MONTH LONG PROTECTION - One application shields your pup for a full 30 days of flea and lice prevention.
EFFORTLESS APPLICATION - Pre-measured, fragrance-free tubes make treatment quick, clean, and stress-free.
WATERPROOF AFTER 24 HOURS - Your dog can splash and play without losing protection—rain or shine.
VET RECOMMENDED FLEA DEFENSE - Trusted by professionals to keep your small dog itch-free and happy.

Advantage Bayer II Topical Flea Treatment is a vet-recommended, fragrance-free solution designed specifically for small dogs weighing 3-10 pounds. This 4-dose topical treatment kills fleas on contact within 12 hours and provides up to 30 days of continuous protection against fleas and lice. Easy-to-apply, waterproof after 24 hours, and effective for all life stages of fleas, it breaks the flea life cycle to keep your dog comfortable and healthy month after month.

Specifications

ASIN	B004QRHSDU
Active Ingredients	Pyriproxyfen and Imidacloprid
Age Range Description	All Life Stages
Allergen Information	Abalone Free
Best Sellers Rank	#91,278 in Pet Supplies ( See Top 100 in Pet Supplies ) #118 in Dog Flea Drops
Brand Name	Advantage
Customer Reviews	4.4 4.4 out of 5 stars (2,899)
Dog Breed Size	Small
Global Trade Identification Number	00724089617071, 10724089367317
Included Components	FLEA TOPICALS
Item Form	Stick
Item Type Name	Bayer Advantage II Flea and Lice Treatment for Small Dogs, 3-10 lb, 4 doses
Item Weight	0.01 Pounds
Manufacturer	Elanco US Inc
Manufacturer Part Number	5420240
Model Number	86336731
Scent Name	Unscented
Target Species	Dog
UPC	724089617071 724089202406
Unit Count	4 Count
Volume	1.6 Milliliters

Reviews

T**Y

This stuff used to work great but seems like now it doesn't work as good but still knocks them down a bit

16.03.2026

K**Z

No more itchy dogs

24.03.2026

Y**E

Please Oh Please!! ... Goodbye fleas!

13.03.2026

S**G

The only flea medicine I buy

22.01.2026

F**E

Works great keeps fleas off my cats. Wouldn't want to buy any thing else

15.01.2026

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