When vial-size variants exist, they remain separate because vial strength, concentration, and syringe-unit calculations can differ
Evidence for these combinations remains limited to case reports and small case series, but interest is growing
Can Vitamin B12 injections be used for patients with neurological manifestations
doi: 10.3390/ijms20184559 Summary Keywords thiamine, riboflavin, niacin, pyridoxine, folate, cobalamin, complex B vitamins, neuropsychiatric manifestations Citation Han A, Almeida L, Anand N, Salloum IM, Kanaan S, Gadad BS and Daher JPL (2025) Exploring neuropsychiatric manifestations of vitamin B complex deficiencies
However, it usually takes longer for neurological symptoms like issues with movement or sensation to get better