Vitamin B12 (Generic) Injectable Solution, 1000-mcg/mL

By Vitamin B12
Rated 4.5161 out of 5 stars
Prescription Item


Selected: Size:


Selected: Size:

$5.49Chewy Price
$5.22Autoship Price
(Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

In Stock
FREE delivery over $35
Usually arrives in 3-5 days
We'll collect your pet's prescription information at Checkout.

This item requires prescription approval.

Medications ship separately. Delivery times may vary.

Frequently Bought Together

Terumo Luerlock Canine Syringes 22G, 3-cc, 100 syringes
Rated 4 out of 5 stars
$19.00Chewy Price
Sharps Container, 1-gal
Rated 4.2838 out of 5 stars
$7.17Chewy Price
Total Price: $31.66

About This Item


Vitamin B12 (cyanocobalamin) is a supplement commonly used to treat vitamin B12 deficiencies in animals with gastrointestinal disease. Prescribed by a veterinarian, this injectable solution is used with dogs, cats and horses.

Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.

See More




ReviewsWrite a Review

Rated 4.5161 out of 5 stars
31 Ratings
Would recommend to a friend

31 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By donziius on Jul 4, 2023

B-12 for cat

Got this for my cat that needed b-12 shots. Used 29g syringes that my daughter had for her cats insulin shots. No problem using those for this. I had seen that the needles bend using this, but mine did not. A lot cheaper doing yourself than going to the vet.

Rated 5 out of 5 stars
By Karen on May 25, 2023

Vitamin B12 Injectable

I have only used .25ml of this Vitamin B12 injectable once a week for the past 2 weeks. I can already see an improvement in my 15 year old cat Keta. She is more social and hangs out with me as before she isolated herself upstairs probably because she didn't feel good.

Rated 5 out of 5 stars
By KittyMom on Jul 24, 2023

Medication is easy to use. Wish you stocked the syringes, 1 ml, 25 gauge, 5/8 inch needle length.

Rated 3 out of 5 stars
By Karingee on Mar 18, 2023

Vitamin B12 injection

I can't give review yet as I've only given one injection. My vet wants me to give one injection weekly for 6 weeks. Then retest my cat to see how the B12 is working. I can update review after that.

Rated 5 out of 5 stars
By donna on Jun 29, 2023

A good feel-good vitamin

This product helps most animals feel better, a great immune booster

Rated 5 out of 5 stars
By Pickles on May 9, 2023

5 stars

I am ver6 happy with the vitamin B12.

Rated 3 out of 5 stars
By richjd on Jul 23, 2022

Had to wait too long

Friday- Order Friday- Email from Chewey that I needed a written script Friday -email vet I need written script Tue- Vet has script ready Tue Drive 4 miles to vet Tue- mail script Sat - email saying it is shipped and will receive Wend. Not all chewey's fault, Just not worth the time and effort to do mail order.

Rated 4 out of 5 stars
By 321pat on Sep 11, 2022

No lid supplied to keep vial covered

Good price but no top so I use a top from a Pam that sits on it. Using for my cat.

Rated 5 out of 5 stars
By Sami on Mar 3, 2022

Easy to Use!

First time using an injectable vitamin solution on my dog. It was easy to use with the syringes I had ordered. Seals up well, no leaks.

Rated 5 out of 5 stars
By ddpowell on Apr 15, 2022

Good product - great price

I give weekly shots to A few cats in our recue. This is a must for us.