b12 injections toxicity Vitamin Overdose & Toxicity: Too Much Can't Kill · PA Relief Understanding the B12 Vitamin Shot:

If you take a look at energy supplements or energy drinks, theres one ingredient youll find in commonvitamin B12

Heres what we recommend for elderly patients: Start with 1000 mcg of vitamin B12 weekly for 4-6 weeks Then, give 1000 mcg every 1-3 months, depending on how theyre doing Keep an eye on their vitamin B12 levels, blood counts, and brain function A study in the Journal of Gerontology stressed the need for B12 in older adults

[1] It is prepared in a 30 mL multi-dose vial with a preservative (2 % benzyl alcohol) for multiple withdrawals

Additionally, vegetarians and vegans may require these injections as this vitamin is primarily found in animal products