Rx Vitamins Immuno Chicken Flavored Liquid Immune Supplement for Cats & Dogs, 4-fl oz bottle

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At a Glance

  • Immune Support
  • All Lifestages
  • All Breeds

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$49.29 List Price
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About This Item

Details

  • Supplemental liquid that helps maintain a healthy immune system in your furry friend.
  • Contains l-lysine combined with immune-enhancing nutraceuticals to help boost immune function.
  • Helps protect nerve tissue, reduce the effects of free radicals and oxidative damage.
  • Highly-palatable liquid with chicken flavor for easy administration.
  • Carries the National Animal Supplement Council Seal (NASC).

Ingredient Information

Instructions

FAQ

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Questions & Answers

1 Customer Questions

Does it contain any ingredient that my dog can be allergic to?

Answer by Chewy • Apr 21, 2021
For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.
Reviews
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4.2
Rated 4.2 out of 5 stars
39 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

76% Positive

Form and Administration

64% Positive

Ingredients

85% Positive

Nutritional Value

85% Positive

22 Customer Reviews

Rated 5 out of 5 stars
By Neysha on Sep 10, 2025

The cat likes it!

Azzie doesn’t like anything weird in her food but I put this on top of her wet food on the morning and at night and she eats it! No rejection anxiety from me! It

Azzie doesn’t like anything weird in her food but I put this on top of her wet food on the morning and at night and she eats it! No rejection anxiety from me! It seems to be helping with her sneezing and I love that there’s all natural ingredients in it particularly adaptogens!

Rated 5 out of 5 stars
By Sharon on Jun 22, 2025

Another important boost to immune system

My 6 year old cat was just diagnosed with FIV (cat version of HIV) in the active stage. Her immune system is not working to help with various infections. In this

My 6 year old cat was just diagnosed with FIV (cat version of HIV) in the active stage. Her immune system is not working to help with various infections. In this case her eyes. The Dr recommended Vitamin C and Lysine to boost her immune system. I tried the chews for both and they did not work. Then found something to add to her food. I brought them to the Vet. She gave me the dosages for them for my cat. She has been improving (not cured as there is none) But at least boosting her immune system appears to give her some energy and improve her eating. (her weight went from 10 lbs to 6 from Sept 24 to May of this year. Her weight is holding steady at 6.4 and I hope she gains more.

Rated 1 out of 5 stars
By John on Mar 28, 2025

Thought we were getting a new lot number and updated label

Got the old label and same lot number we have been getting for 2 years, we thought it was getting old so we thought getting the new bottle would be good, we got

Got the old label and same lot number we have been getting for 2 years, we thought it was getting old so we thought getting the new bottle would be good, we got the older yellow bottle.Same Lot number as 2 years ago !

Rated 5 out of 5 stars
By Katrinka on May 29, 2025

Immuno Liquid Supplement

Great stuff. Recommended by my Vet (Rainbow Vet) for my cat's general immune issues. It's truly helping!

Great stuff. Recommended by my Vet (Rainbow Vet) for my cat's general immune issues. It's truly helping!

Rated 4 out of 5 stars
By Susan on Jan 20, 2025

Looking for lysine

My cat has the herpes virus in his eye. It has not gotten worse since giving him the supplement but I really can’t say if it’s working or not. Can’t hurt though

My cat has the herpes virus in his eye. It has not gotten worse since giving him the supplement but I really can’t say if it’s working or not. Can’t hurt though.

Rated 2 out of 5 stars
By Amy on May 22, 2024
Top 50 Contributor

Messy and cat doesn't like it

My cat won't eat this or anything it is mixed with. I really wanted some liquid lysine for her, and I can try syringing but this is a very dark color and very messy

My cat won't eat this or anything it is mixed with. I really wanted some liquid lysine for her, and I can try syringing but this is a very dark color and very messy. The lid has a dropper attached which makes using a syringe difficult without being messy. Will not be using this.

Rated 3 out of 5 stars
By Patricia on Sep 26, 2024

Looked easy to use

cat didn't like it

cat didn't like it

Rated 5 out of 5 stars
By Sarah on Dec 10, 2022

It works for my cats

I mix a few drops in their wet food every day. My one cat suffers from eye goops & this helps her immune system. My cats typically get a feline herpes (cold) flair

I mix a few drops in their wet food every day. My one cat suffers from eye goops & this helps her immune system. My cats typically get a feline herpes (cold) flair up when the weather changes & this product helped to reduce symptoms & length. Some finicky cats won’t like it if they can smell it, so again mix it well in their food or add another “topper” like stew/broth to original food or on the side as a treat. I like that I can add this to their food that doesn’t contain L-lysine to help prevent sickness. Just a good vitamin they really need & can add on my own. Chicken flavor is the best, the original smells like bbq sauce & they aren’t as fond of. 2oz Bottle lasts for months.

Rated 1 out of 5 stars
By Bailey on Nov 6, 2022

I regret buying this

This stuff is messy and smells disgusting. No cat with a brain would want it even mixed into food. The worst part is it has a reddish color which stains EVERYTHING

This stuff is messy and smells disgusting. No cat with a brain would want it even mixed into food. The worst part is it has a reddish color which stains EVERYTHING. I used it once and never again. Waste of money.

Rated 5 out of 5 stars
By Shanti on Nov 10, 2022

Effective for cough

My FIV cat loved the chicken flavored one on wet and dry food. I gave him the 5 pound dose twice a day even though he is 11 pounds. His constant cough cleared up

My FIV cat loved the chicken flavored one on wet and dry food. I gave him the 5 pound dose twice a day even though he is 11 pounds. His constant cough cleared up after 3 days.