10.1089/acm.2006.12.881 Summary Keywords vitamin B12, efficacy, bioavailability, therapeutic approaches, meta-analysis, cobalamin Citation Mazur M, Ndokaj A, Salerno C, Vallone J, Ardan R, Bietolini S, Carrouel F, Wilk A, Sarig R, Ottolenghi L and Bourgeois D (2025) Efficacy of sublingual and oral vitamin B12 versus intramuscular administration: insights from a systematic review and meta-analysis
Practitioners should inquire about the timeline of nodule development, any preceding events (such as illness or trauma), and the type of filler used
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Vitamin B12 injections (hydroxocobalamin in the UK) are prescribed for documented deficiency states such as pernicious anaemia and malabsorption disorders
Individuals with Digestive Disorders: Conditions such as pernicious anemia, celiac disease, and Crohn's disease can interfere with B-12 absorption
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