The recommended daily amount (RDA) varies, depending on age and other factors, but while the recommended dose for an adult is 2.4 mcg (micrograms), B12 vitamin pills are also sold in doses of 5 to 25 mcg, and even 500 mcg to 1,000 mcg or more
Multi-dose Vial: Because of the benzyl alcohol preservative, bacteriostatic water typically comes in larger vials (commonly 30 mL plastic vials) that remain sterile for multiple uses
However, VacA disrupts the integrity of the gastric epithelial barrier by forming channels or pores in the cell membrane, leading to increased permeability, and plays a role in regulating host cell apoptosis according to cell type and environmental conditions (Reyes, 2023
For individuals struggling with B12 deficiency, oral supplements may not always offer sufficient remediation