b12 injection dosing CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 mL (1000 mcg/mL) 30 mL VIAL Vitamin B12 Injections: Dosage and
Description
The standard approach starts at 2.5mg weekly for four weeks, then escalates in 2.5mg increments every four weeks based on tolerance and response
B12 does not directly provide energy

Results can otherwise be very misleading, as B12 that has not yet been metabolised elevates the blood level

The finding was statistically significant