Rx Vitamins LiquiCarn Liquid Heart Supplement for Cats & Dogs, 4-fl oz bottle

Skip image gallery
Slide 1 of 7

At a Glance

  • Heart Care
  • All Lifestages
  • All Breeds
$23.20 First Time Autoship Price
this order
Save 50% (up to $20) today when you set up Autoship. 
$41.04 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$43.20 Chewy Price
($10.80 /fl oz)
Save $6.19 (-13%)
$49.39 List Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

Details

  • Supplemental liquid that helps support cardiovascular, liver, and cognitive health and function in your pet.
  • Formulated for those furry friends with carnitine deficiency.
  • Contains medical-grade l-carnitine, which is an amino acid that plays many roles within the body.
  • Highly-palatable with a liver-bacon flavor for easy administration.
  • Approved by the National Animal Supplement Council Seal (NASC).

Ingredient Information

Instructions

FAQ

Frequently bought together

Questions & Answers

6 Customer Questions

Does the carnitine used in this supplement come from Lonza? How much tartrate is in each dose?

Answer by Chewy • Nov 23, 2019
The carnitine in LiquiCarn comes from Switzerland, which produces some of the purest, medical grade carnitine in the world. This supplement doesn't contain tartrate within the ingredients.

I don’t understand the recommended dosing...how much am I supposed to give my 10 lb dog?

Answer by Chewy • Feb 11, 2021
Dogs of all sizes are to take 50mg twice a day.

Do you need a prescription from a vet for this?

Answer by Chewy • Nov 25, 2019
This supplement does not require a prescription.

Does this help with weight loss?

Answer by Chewy • Apr 27, 2025
This recipe features L-Carnitine, an amino acid that plays many roles within the body, which may help in patients with carnitine deficiencies, obesity, and cysteine associated with carnitine deficiency. It's important to note that the effectiveness of L-carnitine supplementation can vary among individual pets. Consulting with your veterinarian is recommended to determine the appropriate dosage and to ensure that this supplement is suitable for your pet's specific health needs.
Reviews
Write a Review
4.5
Rated 4.5 out of 5 stars
11 Ratings
Terms & Conditions

7 Customer Reviews

Rated 1 out of 5 stars
By Victoria on Aug 8, 2025

Read the ingredients: fructose !

I got it for my diabetic cat and did not read ( my fault) it has fructose. He levels went up so never again

I got it for my diabetic cat and did not read ( my fault) it has fructose. He levels went up so never again

Rated 5 out of 5 stars
By Alexia on Apr 23, 2025

Early intervention for fatty lumps

I researched different remedies for fatty lumps and overall health. I new fatty lump sprang up on our 13 year old lab so I decided to give this a go. After a week,

I researched different remedies for fatty lumps and overall health. I new fatty lump sprang up on our 13 year old lab so I decided to give this a go. After a week, the lump has reduced in size (not dramatically) which I feel is good! I’ll continue to monitor this new lump as well as existing for any changes. Overall, I feel like this is adding benefits to my pups.

Rated 5 out of 5 stars
By Jolynn on May 27, 2025

It's helping my cat

My cat has diabetic neuropathy affecting his rear legs. This is helping him to walk up on his toes again, not flatfooted.

My cat has diabetic neuropathy affecting his rear legs. This is helping him to walk up on his toes again, not flatfooted.

Rated 5 out of 5 stars
By Lindsey on May 17, 2024

Cheaper than powder

Much cheaper than using the powdered l-carnitine and is working just as well for my dog. Suggest speaking with your vet to adjust the dose if needed. My dog needs

Much cheaper than using the powdered l-carnitine and is working just as well for my dog. Suggest speaking with your vet to adjust the dose if needed. My dog needs three full droppers for his best results.

Rated 5 out of 5 stars
By erika on Dec 29, 2021

Nutritionist recommended

My dog has had crazy gut issues since having a surgery 1.5 years ago. Nobody can figure out why his appetite has been so hot and cold. I started this a week

My dog has had crazy gut issues since having a surgery 1.5 years ago. Nobody can figure out why his appetite has been so hot and cold. I started this a week ago; I can't say for certain this is the only thing that has made a difference because we are trying A LOT but I can say, my dogs appetite has been so much better.

Rated 5 out of 5 stars
By Shirley on Sep 10, 2021

Recommended

My French Bulldog had gut issues. The LiquiCarn was one of the steps the Animal Nutritionisit had me adjust to his diet. This along w/ his Satiety food & omega

My French Bulldog had gut issues. The LiquiCarn was one of the steps the Animal Nutritionisit had me adjust to his diet. This along w/ his Satiety food & omega 3 solved his issues, its been 4 years now.

Rated 3 out of 5 stars
By Pamela on Nov 14, 2020

On the fence

My biggest complaint is the dropper is measured in ML and the directions have the recommended dose in mg. My cat is not experiencing the recovery others have noted

My biggest complaint is the dropper is measured in ML and the directions have the recommended dose in mg. My cat is not experiencing the recovery others have noted. It seems to make him a little nauseous (which is a side affect of l-carnitine) and his poop a bit loose