RenaKare (Potassium Gluconate) Gel for Dogs & Cats, 5 oz

Prescription Item

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RenaKare (Potassium Gluconate) Gel is prescribed to help correct low potassium levels in both cats and dogs. Potassium deficiencies are common in dogs, and they’re particularly common in cats. Your pet may lose too much potassium through his urine and through his gastrointestinal tract. Pets who don’t get enough potassium through their food may also need a potassium supplement to help regulate those levels. This gel is easy to administer, and your vet may have you mix it into your pet’s food to help prevent any stomach upset.

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RenaKare is a potassium supplement for use in potassium deficient states in cats and dogs.

Possible Side Effects

No serious side effects have been reported.

Drug & Food Interactions

Do no administer in diseases where high potassium levels may be encountered, such as severe renal insufficiency or adrenal insufficiency.


Use with caution in the presence of cardiac disease, particularly in digitized patients or in the presence of renal disease. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

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  1. Prescribing Information

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  • Item Number
  • Generic Name
    Potassium Gluconate
  • For Use With
    Dogs and Cats
  • Administration Form
  • Common Brand Name(s)
    RenaKare, RenaPlus, Tumil-K
  • Product Form
  • Health Condition
    Hypokalemia, Kidney Disease
  • Drug Type

Each 1/2 teaspoon gel contains 468 mg Potassium gluconate.

Recommended Dosage

Adult Cats and Dogs: 1/2 teaspoon per 10 lbs of body weight, twice daily. Kittens and Puppies: Consult your veterinarian Administer with food. Gel is highly palatable. Place small amount on animal’s nose or in mouth to initiate interest. Place gel on food or on animal’s paw thereafter. Dosage may be adjusted as necessary by the veterinarian.

Storage Instructions

Store at a temperature between 59-86 F. Keep container tightly closed.


How is this medication useful?

Oral potassium supplements may be used in animals when potassium levels in the blood are too low. You and your veterinarian can discuss why this drug is the most appropriate choice.

How should this medication be given?

For this medication to work, give it exactly as your veterinarian has prescribed. It’s a good idea to always check the prescription label to be sure you are giving the drug correctly. Oral potassium is best administered with food to help prevent stomach upset. Your veterinarian may have you mix the potassium supplement into food. Potassium supplements can have an unpleasant taste so if you have difficulty getting your animal to take the medicine, contact your veterinarian or pharmacist for tips to help with dosing and reducing the stress of medication time.

Rating: 3.4 of 5 stars 7 Reviews 7 Reviews 3.4 out of 5 Stars

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57% Recommend

57% of reviewersrecommend this product

Rating: 3.4 of 5 stars 3.4 / 5

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7 Reviews

Showing 7 Reviews

  • 5 out of 5 stars

    Works when I hide it in…

    By JS01 on Sep 20, 2021

    Vet recommended this. Purchased first tube from vet for more than 3x what chewy is charging, so I’ll be ordering my refills here. Cat is super finicky snd knows when food has been tampered with, and refuses the food. However, if I stir a dose of this with one tube of Churu lickable treats in a bowl, she refuses it at first but then goes back and eats it. This is a win given it needs to be administered 2x a day!!! And I’m pleased to not have to force feed it to her. Try the Churu trick. It worked for me so this is clearly palatable “enough” when mixed with something yummy.

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  • 1 out of 5 stars

    cat hates it

    By kittyl on Feb 26, 2021 top250Contributor

    note: i submitted a detailed review that didn't get posted for some reason. so this is my second attempt, minus all the details: my senior cat needs to supplement potassium 3 times per day but she absolutely hates this gel and refuses to take it.

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  • 2 out of 5 stars

    My cat doesn't like it

    By Debbie on Feb 8, 2021

    My kitty's potassium levels have been low and our vet suggested RenaKare as a supplement. My cat won't take the gel but I ordered both the gel and the powder form and thankfully I am able to mix the powder in his food and he eats it.

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  • 5 out of 5 stars

    Vet prescription

    By Topaz on Mar 29, 2021

    I was so happy to find this on Chewy. My vet prescribed it. I don't know yet if my cat will improve, but I trust the vet.

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  • 5 out of 5 stars

    Great product

    By Trissy on Jan 24, 2021

    Easy to use , love that it’s a gel & my dog likes it uses it to keep her potassium right

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  • 1 out of 5 stars

    Chewy Pharmacy

    By DDD234 on Oct 14, 2020

    Although my vet approved the prescription promptly, the pharmacy took almost a week to process this order. And only after I called to speed things up. Sadly, the medicine came too late to benefit my sick pet.

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  • 5 out of 5 stars

    Works Great!

    By Maria on Nov 7, 2020

    Works great for our diabetic dog, cheaper from Chewy and easy to get the prescription from our vet!

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