Rx Vitamins Formula CV Capsules Heart Supplement for Cats & Dogs, 90 count

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At a Glance

  • Heart Care
  • All Lifestages
  • All Breeds
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About This Item

Details

  • Supplemental capsules that help maintain your furry friend’s cardiovascular system.
  • Contains potassium and magnesium, which play important roles in the contraction and relaxation of the heart muscle.
  • Protects the integrity of blood vessels with selenium and provides vital antioxidant protection.
  • Features hawthorn berry and other essential nutrients for cardioprotective qualities.
  • Approved by the National Animal Supplement Council Seal (NASC).

Ingredient Information

Instructions

FAQ

Frequently bought together

Questions & Answers

3 Customer Questions

Can you open the capsule of the CV support and sprinkle in the dog kibble?

Answer by Chewy • Jan 09, 2020
These capsules can be swallowed whole, or opened up and sprinkled over your pet's food. They are small enough to fit into a pill pocket, as well.

My dog is on a variety of heart medications. Would this be safe to use along with?

Answer by Chewy • Aug 20, 2019
Due to your pet's diagnosed condition, we recommend consulting your Veterinarian to see what would be a good fit for your pet's current treatment plan.

Does the RX Vitamin Line need a prescription ?

Answer by Chewy • Aug 14, 2019
This supplement doesn't require a prescription for purchase.
Reviews
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4.6
Rated 4.6 out of 5 stars
31 Ratings
Terms & Conditions

Customers Mention

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

Effectiveness

82% Positive

Form and Administration

84% Positive

Ingredients

82% Positive

Nutritional Value

80% Positive

12 Customer Reviews

Rated 3 out of 5 stars
By Susan on Dec 22, 2025

careful not to add it to prescribed hypotension meds!

The hawthorne berry and l-carnitine probably added to the hypotension medicine Ziggy was on, and made him very lethargic and lose his appetite. Only use this with

The hawthorne berry and l-carnitine probably added to the hypotension medicine Ziggy was on, and made him very lethargic and lose his appetite. Only use this with close coordination with a vet. It works, but can hurt your dog if it's already on hypotension causing meds.

Rated 3 out of 5 stars
By Colleen on Dec 8, 2025

Shipping

Loved chewy but shipping seems extra long now

Loved chewy but shipping seems extra long now

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

For Molly's heart health

These were recommended by our regular vet and cardiologist for our 10-year-old Labrador Retriever. We can just place them on top of her wet and dry food and she

These were recommended by our regular vet and cardiologist for our 10-year-old Labrador Retriever. We can just place them on top of her wet and dry food and she has no problem eating them. (They must not smell or taste weird.) Hopefully, they are helping!

Rated 5 out of 5 stars
By Kimberly on Aug 22, 2024

Excellent supplement

Very helpful for my dog who has a slight heart murmur.

Very helpful for my dog who has a slight heart murmur.

Rated 5 out of 5 stars
By Barbra on Jun 21, 2024

Great price

Purchase and hit quick! Great service

Purchase and hit quick! Great service

Rated 4 out of 5 stars
By Duck on Apr 30, 2022

Neat concept but not ideal

I bought several of these toys that dispense treats for my dogs. This specific duck is cool, but not quite sure how he’s supposed to get the treats out without completely

I bought several of these toys that dispense treats for my dogs. This specific duck is cool, but not quite sure how he’s supposed to get the treats out without completely ruining the rubber/hole area. He loves it, ever since we’ve gotten the toy my pup hasn’t left it alone.

Rated 5 out of 5 stars
By Megan on Mar 19, 2022

Working well for my cat so far

I bought this because my vet recommends this brand, and my new shelter cat has cardiac issues. As others have noted, it's a bit challenging to dose a cat, so here's

I bought this because my vet recommends this brand, and my new shelter cat has cardiac issues. As others have noted, it's a bit challenging to dose a cat, so here's what I do. Charles is supposed to get half a capsule a day. So I break up a capsule each morning and sprinkle over the dry food my 3 cats eat. He's still chunky and eats a lot, so it's not exactly a half a capsule, but it's the best I can do. Then I add a packet of Purina FortiFlora to the dry food as well, and mix it all up. The flavor from the FortiFlora makes it super tasty and they all eat it well.

Rated 5 out of 5 stars
By Hlop on Oct 10, 2021

Love this, it works

My chihuahua had heart murmur he always sounded congested snore loud and gurglely, as if he always had a cold. But since taking this those symptoms are gone.

My chihuahua had heart murmur he always sounded congested snore loud and gurglely, as if he always had a cold. But since taking this those symptoms are gone.

Rated 5 out of 5 stars
By Jill on Jan 31, 2021
Top 500 Contributor

Helpful for a dog with cardiomyopathy

I use a number of supplements as well as prescribed heart medications for our dog with cardiomyopathy (of a valvular nature). It's always a bit of a challenge to

I use a number of supplements as well as prescribed heart medications for our dog with cardiomyopathy (of a valvular nature). It's always a bit of a challenge to tell what exactly does what, but my sense is that this product is helping. I've also started using a pinch of it for my 17 year old cat who sometimes shows signs of heart issues. Since our dog is little and does not swallow pills well, I open the capsules and put the powder into a mix for him of supplements, including the canine heart support by Standard Process. I think he likes the taste of that. Always a bit of a guess, but I don't think that he minds the taste of the formula cv mixed in with liquid.

Rated 5 out of 5 stars
By Vicki on Oct 8, 2020

Vet Prescribed

I prefer homeopathic or natural remedies when possible. My vet had me start with this medication for my dog’s heart murmur. Unfortunately, his heart murmur got worse;

I prefer homeopathic or natural remedies when possible. My vet had me start with this medication for my dog’s heart murmur. Unfortunately, his heart murmur got worse; so my vet added a prescription heart murmur medication, but still recommended my dog keep taking this herbal capsule as well. His heart murmur has improved. He’s 62 lbs. & gets 1 herbal capsule twice daily.