A healthcare professional will typically conduct blood tests to diagnose a B12 deficiency before recommending injections
Herndon DN, Ramzy PI, DebRoy MA, Zheng M, Ferrando AA, Chinkes DL, Barret JP, Wolfe RR, Wolf SE
A complete B12 and nutrient assessment may also be recommended, including laboratory testing
Also to those thst are new to this it's very important to treat as quickly as possible in loading doses to prevent as much damage as possible
Hydroxocobalamin 1mg is the standard UK formulation, typically administered every two to three months for maintenance therapy Self-administration requires GP prescription, competency training from practice nurses, and demonstration of proper injection technique Common injection sites include the thigh (vastus lateralis) for both intramuscular and subcutaneous administration with site rotation essential Serious side effects are rare but anaphylaxis requires immediate 999 call