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Factors Influencing Dosage and Frequency Several factors can influence the dosage and frequency of Vitamin B12 injections: Severity of Deficiency: More severe deficiencies require higher doses and more frequent injections initially
Methionine also reduces the level of histamine in the body which may be beneficial for anyone with chronic allergies or inflammatory conditions
The arm is used for smaller doses, and the buttock for bigger ones
Any discomfort is brief and typically fades within moments
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