vitamin b12 injection procedure Shots vs. IV Infusions: What is the difference? How to self-inject intramuscular vitamin

Many patients choose the compounded route specifically because the predictable cash price is lower than the branded copay over a year of treatment

In injection form, higher concentrations can occasionally trigger mild gastrointestinal symptoms nausea, loose stools, or a feeling of stomach heaviness in people who are sensitive to it or who are new to the formula

This medication is taken once daily on an empty stomach, at least 30 minutes before the first food, beverage, or other oral medication of the day

according to the National Academies of Sciences, Engineering, and Medicine, absorption is approximately 50% at 1 mcg but falls to roughly 1.3% at 1,000 mcg