Sentry Fiproguard Plus Flea and Tick Control for Cats combines fipronil (the main ingredient in Frontline) and (S)-methoprene to eliminate pests and break the infestation cycle. Its fast-acting, long-lasting formula kills fleas, flea eggs, flea larvae, ticks and chewing lice on contact.

Safe for use on breeding, pregnant and lactating cats. Fiproguard Plus is waterproof and stays effective even after bathing and exposure to sunlight. Use only on cats and kittens over 8 weeks of age.

Directions: Separate one tube from the others. Hold the tube with notched end pointing up and away from the face and body. Use scissors to cut off the narrow end at the notches along the line. Invert tube over cat and use open end to part cat's hair. Squeeze tube firmly and apply all of the solution to the cat's skin between the shoulder blades. Apply monthly if your cat is at high risk for flea reinfestation.

Active Ingredients:

Fipronil: 9.8%

(S)-methoprene: 11.8%

Key Features

  • Kills and protects against fleas, ticks and lice
  • Breaks the flea life cycle and prevents reinfestation
  • Fast-acting, long-lasting and waterproof formula
  • For use on cats & kittens over 1.5 lbs & 8 weeks of age


Brand Sentry
UPC 073091031642
Item Number 3164-665290915D68-17236
Size 3 Applications - (Cats over 1.5 lbs)
Weight 0.1833 lbs.
Pkg Dimensions 8.25" (L) x 4.69" (W) x 1.5" (H)

Customer Reviews

   5.0 out of 5
5 star
4 star
3 star
2 star
1 star

Add a Review

Your rating:  
Your email will NOT be published or displayed.

Reviewed by Kathy K. on Apr 18, 2021

Seems to work just as well as the other name brand and it bothers my cat less. Win win!

Reviewed by Dennis S. on Feb 18, 2021

Between that and living in one of the worst states for fleas

Reviewed by Lori V. on Jan 26, 2021

GREAT VALUE! This stuff works!!!

Reviewed by francina w. on Jan 14, 2021

Worked on my cat

Add a Review

Your rating:  
Your email will NOT be published or displayed.

Join the Critter Club and get exclusive access to coupons and special offers just for club members!

Plus get a 10% off coupon code you can use today!

CritterWarehouse.com Email List Signup
We'll never share your email address with any third-parties.