when are b12 injections given What Is Injection What's all the Buzz About Vitamin B12 Shots? Vitamin B-12 Intramuscular Injection —

doi:10.1146/annurev.nutr.19.1.217

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How do I calculate the correct dose if Im using a vial size other than 50mg

Important things to keep in mind include: Serum B12 levels should be normal for most people Methylmalonic acid (MMA) and homocysteine levels can show if B12 is really working, even if levels seem fine How symptoms change is also important When and How to Adjust Dosing Regimens Doctors might need to change the dose based on test results and how the patient is doing

Gauge and length are two of the most important factors in needle size