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It can take up to a week, but normally they feel the benefits after a couple of days

Vitamin B12 is needed to form red blood cells and DNA

These include diet, malabsorption, and some medical conditions

By looking at lab results and clinical checks together, we get a full picture of how well B12 injections are working

Injection techniques such as intramuscular injection require special care to avoid side effects, including potential nerve damage. Very rare but serious reactionssuch as severe allergy, difficulty breathing, chest pain, or signs of infection at the injection siterequire immediate medical attention

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