why does someone need b12 injections Do You a Prescription for Injections? Feeling worse after B12 Injection:

It is supplied in capsule form and is studied for its role in cellular energy pathways and its relationship with NAD, a critical coenzyme involved in metabolic and cellular processes

However, these injections are not recommended for people with thyroid disorders, anxiety disorders, and cardiovascular conditions

The frequency of B12 injections depends on your individual needs and health goals

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Clinical research has generally demonstrated favorable tolerability, though individual responses vary

Vitamin B12 injections may help to increase energy levels in people with vitamin B12 deficiency