side effects of a b12 injection Are Injections Safe? & Risks Explained is it safe to take

doi: 10.3389/fphar.2025.1602976 Received 30 March 2025 Revised 13 November 2025 Accepted 14 November 2025 Published 19 December 2025 Volume 16 - 2025 Edited by Bernd Rosenkranz, Fundisa African Academy of Medicines Development, South Africa Reviewed by Kacper Nijakowski, Poznan University of Medical Sciences, Poland Miriam Njoki Karinja, Science for Africa Foundation, Kenya Updates Copyright 2025 Mazur, Ndokaj, Salerno, Vallone, Ardan, Bietolini, Carrouel, Wilk, Sarig, Ottolenghi and Bourgeois

Which B12 Injection Is Best

Vitamin B12 injections are used to treat low B12 levels when diet or tablets are not enough

Step 2: Using the mixing syringe tighten the needle to the hub then pull hack the plunger to bring in 10 mL/cc of air

Drinking heavily can make it harder for your body to absorb nutrients, including B12