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Potential risks include: Infection risk if injections are administered in non-clinical settings without appropriate sterile technique Allergic reactions to any component of the formulation Liver toxicity theoretical concern with excessive methionine or choline Drug interactions particularly if combined with other supplements or medications Unknown long-term effects due to absence of longitudinal safety data The MHRA advises caution with unlicensed injectable products, as quality, purity, and sterility cannot be guaranteed
Taking certain medicines can interfere with how your body absorbs vitamin B12
Lighter individuals may achieve good results at lower doses (300-350mcg)
The 50 mg lyophilized vial format is intended for extended research protocols and bulk in vitro / preclinical assay use
