injection vitamine b12 Vitamin shots: Uses, benefits, and side effects Compounded Cyanocobalamin (Vitamin B12) Injection

But it could be helpful to screen people for B12 deficiency in advance and give them B12 supplements to delay or prevent the onset of depression

Balances concentration with syringe precision | | 50mg | 5mL | 10mg/mL | 0.5mL (50 units) | 1.0mL (100 units) | Lower concentration improves measurement accuracy but uses solution faster | | 100mg | 2mL | 50mg/mL | 0.1mL (10 units) | 0.2mL (20 units) | Higher vial amount extends total doses but requires same precision as 50mg/1mL | | 100mg | 4mL | 25mg/mL | 0.2mL (20 units) | 0.4mL (40 units) | Optimal for multi-week protocols

doi:10.1016/S0271-5317(05)80364-1 [CrossRef] 44

Uses & Indications Insulin syringes are used any time a patient must inject insulin

The focus on b12 specifically appears to be marketing rather than science