b12 self administered injections Vitamin Injection Self-Administration Instruction Guide for Intramuscular (IM)
Description
Inactive form
Key Takeaways People who are allergic to cobalt might also be allergic to vitamin B12

So once your stores are topped up, a maintenance injection is designed to hold you for two to three months

Parent precursor masses of 124.0, 399.3, 385.1, and 665.1 Da and Q3 masses set to m/z 80.0, 250.1, 136.0, and 136.0 were used for the quantitation of NA, SAM, SAH, and NAD + , respectively
