what happens when you stop taking b12 injections How Long Does a Shot Last? what happens if i stop

Individuals with Poor Absorption: People with low stomach acid, or those who have had certain surgeries (like gastric bypass), may struggle to absorb B12 from food and would benefit from injections

Special considerations and populations Certain individuals may need protocol modifications based on specific circumstances or characteristics

doi:10.1001/archneur.1992.00530300089014

10.1089/acm.2006.12.881 Summary Keywords vitamin B12, efficacy, bioavailability, therapeutic approaches, meta-analysis, cobalamin Citation Mazur M, Ndokaj A, Salerno C, Vallone J, Ardan R, Bietolini S, Carrouel F, Wilk A, Sarig R, Ottolenghi L and Bourgeois D (2025) Efficacy of sublingual and oral vitamin B12 versus intramuscular administration: insights from a systematic review and meta-analysis

We do not provide kits or instructions for unsupervised self-injection