What is B12? Uses, warnings & side effects

Updated May 14, 2025  •  Published May 8, 2022

B12 overview

BRAND NAMES:

Generic Names:

  • B12

Uses:

Therapeutic Classes:

Forms:

How it’s taken:

What is B12 used for?

What form(s) does B12 come in?

What are common B12 dosages?

  • Bottle 90 Tablets Sublingual

How to take B12

What to do if you miss a dose of B12

B12 contraindications - Who shouldn't take B12?

B12 warnings

B12 interactions & what to avoid when taking B12

B12 side effects - How does B12 make you feel?

Subscribe to our savings newsletter

Health education, drug info, wellness & more

By clicking 'Subscribe', I agree to SingleCare's Terms & Conditions.