according to Frontline's website FAQ question #7 states: FRONTLINE Brand Products do not carry an expiration date. We recommend storing FRONTLINE Brand Products at room temperature and keeping them sealed in their original packaging. If stored under these conditions, FRONTINE Brand Products will not expire.

If my dog is 22 do I buy up to 22 or go to the second category 23 up?

I am in the same situation. I have found that the smaller dose is not effective. But the 23 and up does the trick.

Yes, but the product must dry before a bath or swimming. “Waterproof” is also listed on the front of package.

Does it actually work ?

We've used this product in the past and it worked, and we live on a corner and have our dogs in the country and camping in wooded areas. If I remember correctly, it won't kill adult fleas, but prevents them from reproducing and I believe the nuts as well. If there's an infestation, or a source of fleas nearby, even a neighbor animal, that doesn't have the flea problem addressed, the flea cycle will continue.

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Plus Flea & Tick Spot Treatment for Medium Breed Dogs 23-44 lbs. (Blue) Count of 3

Product ID: 3932966

Details

Active Ingredients
fipronil and
Age Range (Description)
All Life
Allergen Information
Allergen-Free
Brand
Frontline
Dog Breed Size
Medium
Item Form
Liquid

⏳30-day protection

💧Waterproof after 24h

🦟Kills fleas, ticks & lice

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€ 76.65

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Description

🛡️ Protect your best friend like a pro—because flea & tick season waits for no one!

WATERPROOF POWER - Keeps working even after your dog’s swim or bath, activating 24 hours post-application.
MONTH LONG DEFENSE - One application shields your dog for a full 30 days—no interruptions, no worries.
TRUSTED FOR 20 YEARS - Backed by decades of proven effectiveness and pet owner loyalty worldwide.
COMPLETE PEST ERADICATION - Targets adult fleas, eggs, larvae, ticks, and chewing lice to break the infestation cycle.
EASY SINGLE SPOT APPLICATION - Just one dose applied to a single spot covers your dog’s entire body effortlessly.

FRONTLINE Plus Flea & Tick Spot Treatment for Medium Dogs (23-44 lbs) delivers fast-acting, waterproof protection that kills fleas, ticks, eggs, larvae, and lice for a full month. Trusted by pet owners for over 20 years, its unique formula with fipronil and (S)-methoprene breaks the flea life cycle and controls sarcoptic mange. Easy to apply and effective even after water exposure, it’s the go-to monthly defense for keeping your dog pest-free and comfortable.

Specifications

ASIN	B0002J1FN0
ASIN	B0002J1FN0
Active Ingredients	fipronil and (S)-methoprene
Age Range Description	All Life Stages
Allergen Information	Allergen-Free
Best Sellers Rank	#595 in Pet Supplies ( See Top 100 in Pet Supplies ) #9 in Dog Flea Drops
Brand Name	Frontline
Customer Reviews	4.4 4.4 out of 5 stars (24,053)
Date First Available	October 2, 2001
Department	Pet Supplies
Dog Breed Size	Medium
Included Components	3 doses
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Type Name	Flea and Tick Treatment for Dogs Medium Dogs
Item Weight	1 Ounces
Item model number	P004FLTSP-23-44
Manufacturer	Boehringer Ingelheim Animal Health
Manufacturer	Boehringer Ingelheim Animal Health
Manufacturer Part Number	P004FLTSP-23-44
Model Number	P004FLTSP-23-44
Product Dimensions	5.75 x 0.75 x 4.5 inches; 1 ounces
Scent Name	Unscented
Target Species	Medium Dog, 23-44 Pounds
UPC	816306017808 717077000641 742583966532 788995790150 793591599939 891962001071 350604401315 705105831718 643996060353 350604287100 611102267675 078997022220 010756261372
Unit Count	1 Count
Volume	0.14 Fluid Ounces
Warranty Description	If you are not satisfied with FRONTLINE Plus for any reason, please contact the Boehringer-Ingelheim Animal Health Customer Care Team at: 1-800-660-1842

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 76.65

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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TrustScore 4.5 | 7,300+ reviews

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