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how is vit b12 injection administered Instruction Guide for Intramuscular (IM) Self-injection of Methylcobalamin 1mg/5mg B12 Shots vs. IV Infusions:
Description
When these pathways reactivate after deficiency, there may be increased demand for other nutrientsparticularly folate and iron
If you notice a pattern of worse bruising or persistent pain, a short clinician review can adapt the plan
for others, it's by having regular injections of B12

The problem is what happened when it was actually tested in people
