Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

My cat is weak and sick after a Seresto collar. Is it safe?

Updated on September 23rd, 2025

Pet's info: Cat | Maine Coon | Male | neutered | 9 years and 10 months old | 11 lbs

I had a 7 month Seresto on my cat, after that 7 months recently I put another on him. Is that safe? He has been acting real weak, slow and sickly. Could it be the collar making him sick?

1 Answer

Most Helpful Answer

Angel Alvarado, LVT

Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on June 28th, 2018

Side effects of the collar may include the symptoms you described. Remove the collar for 24-48 hours to and see if Brewer improves. If not, have him examined by your veterinarian to diagnose illness or injury.
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button