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A member asked:

How long do b12 shots last?

A doctor has provided 1 answer
Dr. Liesa Harte answered

Specializes in Family Medicine

B12 shots : B12 is water soluble so doesn't last long.

Answered 1/12/2019

4k views

Thank

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How long does vitamin b12 shot last after counts are normal. Do I need shot every month?

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I am a vegetarian who was diagnosed w/a B12 & D deficiency. I started getting B12 shots weekly&had an adverse reaction. How long will that last?

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44-yr old female. Tachycardia since 19. Several docs over yrs. Ekg, holter say normal. Episodes used to last a few min, now up to 10 hrs. Taking Zoloft (sertraline) and macrobid. B12 shots help. What now?

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