Vita-Jec Vitamin B12 for Dogs, Cats & Horses, 1000-mcg/mL, 100-mL

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About This Item

Details

Vita-Jec B12 is approved as supplemental nutritive source of vitamin B12. Each mL of sterile aqueous solution contains 1000 mcg of B12. Readily available source of Vitamin B12.rnApproved for use in horses, dogs, and cats, this solution is available in 100, 250, and 500 mL sizes, and provides effective supplementation when normal dietary needs are not being met.We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.

Ingredients

Instructions

FAQ

4.7
Rated 4.7 out of 5 stars
32 Ratings

Customers Mention

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

Ease of Use

85% Positive

Effectiveness

87% Positive

Ingredients

87% Positive

Long-Term Benefits

85% Positive

11 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 1 out of 5 stars
By Claudia on Sep 22, 2025

Chewy stocks items with very short expiration date

I purchased this and received it in September 2025 and the Vitamins B12 has an expiration of July 2026, that is, of 10 months. I called to exchange it and the pharmacist

I purchased this and received it in September 2025 and the Vitamins B12 has an expiration of July 2026, that is, of 10 months. I called to exchange it and the pharmacist was not able to get me a bottle with an expiration date of at least 1 year. That is not how the pharmacy should have items in stock. Not acceptable and not helpful at all.


Rated 5 out of 5 stars
By Tracey on Jun 21, 2025

Good price!

Not much to say about B12. Great price and speedy delivery as always!

Not much to say about B12. Great price and speedy delivery as always!


Rated 5 out of 5 stars
By Paul on Feb 5, 2025

Using it for years

Several years ago my pup developed a vitamin B12 deficiency, so my first stop was Chewy. I have been using Vita-Jec for quite a while now and have had no issues

Several years ago my pup developed a vitamin B12 deficiency, so my first stop was Chewy. I have been using Vita-Jec for quite a while now and have had no issues whatsoever. Very pleased with it and with Chewy and could not be happier (my pup is happy, too).


Rated 5 out of 5 stars
By Ramiro on Jun 4, 2025

The amount is more than enough

Saves so much by injecting b12 into the electrolyte bag for my KD kitty

Saves so much by injecting b12 into the electrolyte bag for my KD kitty


Rated 5 out of 5 stars
By Albert on Mar 1, 2025

Great price for great product.

Revitalized cat like nothing else.

Revitalized cat like nothing else.


Rated 5 out of 5 stars
By Linda on Sep 10, 2024
Top 1000 Contibutor

It helps.

My poor old kitty got anemic....so....giving him this once a week or two weeks.

My poor old kitty got anemic....so....giving him this once a week or two weeks.


Rated 5 out of 5 stars
By Amanda on Oct 14, 2024

No preservatives

Affordable

Affordable


Rated 3 out of 5 stars
By Sally on Sep 24, 2022

item evaluation

Item is effective ..BUT NOT WHAT WAS ORDERED ..VET ORDER WAS FOR B COMPLEX .!

Item is effective ..BUT NOT WHAT WAS ORDERED ..VET ORDER WAS FOR B COMPLEX .!


Rated 5 out of 5 stars
By CorissaB on Jun 9, 2021

Great for senior CKD dogs!

First off--can I say how much I HATE when people rate a product based on customer service, and things that have NOTHING to do with the actual product? I mean, c'mon,

First off--can I say how much I HATE when people rate a product based on customer service, and things that have NOTHING to do with the actual product? I mean, c'mon, people. You're not helping anyone when you do that. You might very well turn us away from a product that could actually be good for our pets! Anywho--I've been using the Vita-Jec injectable B-12 for over a year now. I now have 2 senior dogs with kidney disease. The B12 was recommended to be added to lactated ringers for my second dog, who ended up not needing fluids at the time. From everything I read, there was no harm in B12 for my dogs, only the potential for good. So I started adding it to fluids for my other dog, who had already been on fluids for a year. The Vita-Jec has been easy to use, and I've for sure noticed a difference. Nariko was perkier after fluids with the B12. That's held true for both my dogs, now that Kali is officially on fluids. I'm reordering for the first time in nearly a year. I'll be going through fluids more frequently now, but the price is excellent. I didn't trust ordering the 'generic' B12 noted on Chewy--too many shoppers mentioned not getting the product they expected. I researched Vita-Jec, was happy with what I saw, so I gave this product a go. I've been very happy, and will continue to re-order this brand of B12 as long as we need it! Note--be sure to check the label and store appropriately! You need to protect B12 from light. I keep the bottle wrapped in a bit of aluminum foil and store it in the same dark, cool place in my closet that I store my LRS bags.


Rated 5 out of 5 stars
By Larusia on Sep 9, 2020

Good for senior cat

I got this for my 19 year old cat after having to make numerous trips to the vet I finally got him to write a script so I can just give my cat the injections at

I got this for my 19 year old cat after having to make numerous trips to the vet I finally got him to write a script so I can just give my cat the injections at home. So far everything seems to be going good with this brand. I researched it and found it's more used in goats and farm animals but with good results so I took a chance as this also says for cats and dogs I just couldn't find any reviews so maybe I'm the first one to say this is great for cats?! ..lol.. But as always I received it fast and great customer service with chewys pharmacy team. Definitely recommend this to others who are giving their fur babies b12 shots.