THUNDERWUNDERS Calming Cat Chews, 100 count -

ThunderWunders Calming Cat Chews, 100 count

By ThunderWunders
Rated 2.9 out of 5 stars
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$20.95Chewy Price
$19.90Autoship Price
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About This Item


  • Calming chews formulated to keep your kitty cool during stressful situations.
  • Helps relieve nervousness from visits to the vet, separation anxiety, storms, fireworks and traveling.
  • Contains thiamine, L-tryptophan and chamomile to help with stress and tension while promoting rest and relaxation.
  • Features a tasty chicken flavor your furry friend will love.
  • Made in the USA!

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Nutritional Information

Feeding Instructions


Questions & Answers

6 Customer Questions

Is this product manufactured in China?
Answer by ChewyApr 11, 2021
These chews are made in the USA.

Why can this only be used for 7 days?
Answer by ChewyJul 15, 2020
The manufacturer suggests no more than 7 days of consecutive use to make sure that your pet has no other conditions that may need a vets attention.

Are these soft or crunchy?
Answer by ChewyJun 07, 2021
These chews are somewhat firm and chewy.

How much L tryptophan is in each chew?
Answer by ChewyNov 01, 2020
Each chew contains 25 mg of L-tryptophan

ReviewsWrite a Review

Rated 2.9 out of 5 stars
30 Ratings
Would recommend to a friend

30 Customer Reviews

Rated 1 out of 5 stars
By Delilah on Oct 31, 2022


None of my cats would eat these. They are a weird texture, hard and plastic like, not crunchy or like soft chews. My Sphinx would pull them all out of the bowl and bat them around. He did not want them in his dry food bowl. The other three cats ignored them completely. They are expensive, but not worth a penny!

Rated 1 out of 5 stars
By MLynn on Feb 20, 2023

Not a Good Taste

My two cats hate the treats even mixed with their food.

Rated 5 out of 5 stars
By Phil on Aug 31, 2022

works great

My little guy gets stimulated very easily and sometimes needs to calm down. He is not fond of the car and these work for vet transportation. But he has never been terrified of the car like some cats so I don’t know if they work on terror cats. He likes the taste and sometimes I give them as a night treat as they are healthy and safe

Rated 5 out of 5 stars
By KoolKat on Aug 3, 2022

It works fine for me

This worked great for me. In fact I was a little worried my cat was too calm, had to wake him up. But I had to leave a review because most negative reviews here are saying their cat would not eat it which does not give any info about if the chews are actually effective. My cat ate it fine, and he is picky.

Rated 1 out of 5 stars
By Fessup on Oct 11, 2022

Wont eat chews

If treats can be made so enticing, why cant beneficial products? This is second calming chew I have bought with no appeal to pet.

Rated 1 out of 5 stars
By noooooo on Jul 24, 2022


I was looking for something to calm down my two cats because they seem to be stressed with each other. I tried these their horrible! They small nasty, Both cats would NOT EAT THEM! I had to open their mouth to eat them for the time being, I hope they work because my cats hat me right now10/10 do not recommend!

Rated 1 out of 5 stars
By sydney on Jul 26, 2022

Cat wont eat

My cat will not eat them whole has to be cut up and mixed with food.

Rated 1 out of 5 stars
By Barb on Mar 4, 2022

cats will not eat them

Unfortunately none of my 3 cats would touch these. They smelled them and walked away.

Rated 3 out of 5 stars
By Deblyn on Jul 1, 2021

Not sure about these

I purchased these in hopes of Buddy chewing them and he was going to be good to go for a road trip and be calm the whole way. I decided to try them before and see what he thought about them. Well, sad to say he did not care for them at all, chewed one and that was it...would not take another one. I also purchased the paste and did not even attempt it. I'm sure it others would enjoy them and they would do the job...Buddy is very picky on what he eats so I can't really rate these.

Rated 1 out of 5 stars
By Kait on Jul 15, 2021


I was looking forward to these treats as I have one cat who gets stressed extremely easily. But these treats smell absolutely horrible and both my cats want nothing to do with them. Don’t even know if they “calm” because my cats would rather leave them alone.