average dose of b12 injection VITAMIN (Generic) Injectable Solution, 1000-mcg/mL, 250-mL vial - Easy Refills CYANOCOBALAMIN INJECTION, USP 30000 mcg/30

You may experience fatigue or lethargy, among other symptoms, if you have a B12 deficiency

NAD injection protocols, especially when combined with B12 shots , can restore depleted levels faster and more effectively than oral supplements

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Clinical Pediatrics, 54(1), 1924

You can choose syringes designed to deliver the medication either into muscle tissue or into fat tissue (subcutaneously)

[95] Intramuscular or intravenous injection [edit] Injection of hydroxycobalamin is often used if digestive absorption is impaired, [2] but this course of action may not be necessary with high-dose oral supplements (such as 0.51.0 mg or more), [97] [98] because with large quantities of the vitamin taken orally, even the 1% to 5% of free crystalline B 12 that is absorbed along the entire intestine by passive diffusion may be sufficient to provide a necessary amount