b12 intramuscle injections Vitamin Injections: What You Need To Know Methylcobalamin Injection (Vitamin B12) |

[15] [16] Tests may include full blood count, serum B12 levels, anti-intrinsic factor antibodies (to diagnose pernicious anaemia), and sometimes methylmalonic acid or homocysteine levels when the diagnosis is uncertain

While many people get adequate amounts only through diet, some may need to supplement vitamin B12 levels with injections

Mild Discomfort- Some people may experience slight discomfort or bruising at the injection site

The most common ones are dry mouth, trouble sleeping, and a faster heart rate, along with restlessness, dizziness, or stomach upset for some patients

However, athletes cannot take more than 100 micrograms within an 8-hour time period