b12 injectible Compounded Methylcobalamin (Vitamin B12) Injection, 5mg/mL and protein and nerve metabolism What Are B12 Injections? And

The label also warns that it contains benzyl alcohol and aluminum, and that serious reactions, including allergic reactions, have been reported with parenteral vitamin B12

(2007) 292:C22739

A syringe that is too small may force multiple transfers, which means more punctures and more opportunities to introduce contamination or disturb the powder

But for most individuals, its puzzling to understand precisely how long it takes before they notice a difference once they begin B12 supplements or injections

Available in 5mg or 50mg vials (50mg total or 500mg total per 10 vials)

Feng X, Zhang L, Acharya C, An G, Wen K, Qiu L, et al