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Vitamin B12 is an essential nutrient that is important for the health of the nervous system, the production of red blood cells, and the functioning of many other processes in the body
Vitamin B12 also comes in oral forms
Anaemia complications All types of anaemia, regardless of the cause, can lead to heart and lung complications as the heart struggles to pump oxygen to the vital organs
It does not instantly kill all bacteria, but it prevents them from proliferating to dangerous levels after a vial has been breached by a needle
What to Expect Before Getting a B12 Shot A nurse or doctor will confirm your deficiency Injection is usually given in the shoulder Slight pinch or sting for 23 seconds Possible brief dizziness or tingling Pre-shot tips: Eat something beforehand Wear loose clothing Stay seated for 10 minutes after What to Expect After Getting a B12 Shot Slight soreness at the injection site Redness or bruising (rare but not harmful) Headache or tiredness in the first 24 hours Most feel normal or better after 12 days Aftercare: Drink water Avoid strenuous activity if dizzy Monitor for swelling or allergy signs Alternatives to B12 Injections: Supplements and Food Sources Not everyone wants or needs a shot
