how many b12 injections should you have to Give at Home to Yourself · PA Relief B12 Injection Services - Subtly
Description
Daily supplementation may need to be continued, but cobalamin blood levels could be monitored with less frequent dosing to see if decreased frequency of administration is adequate

The first few weeks usually bring a shedding phase where things get visibly worse before anything improves, and a lot of people have a hard time preserving through this stage

Metaxas C, Mathis D, Jeger C et al (2017) Early biomarker response and patient preferences to oral and intramuscular Vitamin B12 substitution in primary care: a randomized parallel-group trial

Strong AP, Haeusler S, Weatherall M, Krebs J (2016) Sublingual vitamin B12 compared to intramuscular injection in patients with type 2 diabetes treated with metformin: a randomized trial
