does vitamin b12 injection hurt INJECTIONS Vitamin B12 Injections - Vie

The standard schedule is a starting point, not a strict rule The 2024 NICE guideline NG239 on B12 deficiency in over 16s makes an important point: the optimal route, dose and frequency of B12 replacement have never been firmly established, and have often followed custom and historical practice

Persistent or worsening symptoms beyond the initial treatment period should prompt medical review

As discussed, injections are a more reliable, consistent method of maximizing vitamin bioavailability than oral supplements, with a much higher treatment absorption

doi:10.1159/000053183 Wilding JPH, Batterham RL, Calanna S, et al