# How Much Vitamin B12 in A Shot? **URL:** \ **Category:** Factual Questions\ **Created:** [January 25, 2010, 3:16am UTC](https://boards.straightdope.com/t/how-much-vitamin-b12-in-a-shot/526316 "2010-01-25T03:16:38Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Markxxx](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@Markxxx](https://boards.straightdope.com/u/Markxxx)\ **Post date:** [January 25, 2010, 3:16am UTC](https://boards.straightdope.com/t/how-much-vitamin-b12-in-a-shot/526316/1 "2010-01-25T03:16:38Z")
I was watching “Seinfeld,” and Geroge mentioned getting a vitamin b12 shot. I was wondering how much vitamin b12 is in one shot? I tried to Google and I don’t seem to be able to pull the dose info for a shot ---
**Author:** ![Alice\_The\_Goon](https://avatars.discourse-cdn.com/v4/letter/a/ed8c4c/32.png) [@Alice\_The\_Goon](https://boards.straightdope.com/u/Alice_The_Goon)\ **Post date:** [January 25, 2010, 3:25am UTC](https://boards.straightdope.com/t/how-much-vitamin-b12-in-a-shot/526316/2 "2010-01-25T03:25:28Z")
It’s usually given subcutaneously or intramuscularly in a doctor’s office, and the normal dose is 1,000 mcg, or 1ml. ---
**Author:** ![Hirka\_T\_Bawa](https://avatars.discourse-cdn.com/v4/letter/h/db5fbb/32.png) [@Hirka\_T\_Bawa](https://boards.straightdope.com/u/Hirka_T_Bawa)\ **Post date:** [January 25, 2010, 4:40am UTC](https://boards.straightdope.com/t/how-much-vitamin-b12-in-a-shot/526316/3 "2010-01-25T04:40:51Z")
Cyanocobalamin is normally supplied as 1000mcg per 1mL in a solution for intramuscular injection. The normal dose I see prescribed in the pharmacy is 1 mL every month. ---
**Author:** ![Markxxx](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@Markxxx](https://boards.straightdope.com/u/Markxxx)\ **Post date:** [January 25, 2010, 5:09am UTC](https://boards.straightdope.com/t/how-much-vitamin-b12-in-a-shot/526316/4 "2010-01-25T05:09:20Z")
Thanks interesting to know