standard dose of b12 intramuscular injection Vitamin Monthly Injection: Typical & Schedule What is the recommended dosing

However, it may take a few days or weeks before your symptoms start to improve and you feel better

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With intramuscular (IM) injections the standard treatment for severe deficiency or malabsorption conditions like pernicious anaemiaserum B12 levels rise rapidly, typically reaching therapeutic ranges within 2448 hours after the first injection

Certain drugs, such as the diabetes drug metformin may have an impact on B12 absorption, which may require supplementation