The key ingredients compounded to make a Lipo B injection are Vitamin B12, Methionine, Inositol, and Choline
NHS support for home administration: Most GP practices offer training sessions where practice nurses demonstrate proper injection technique, sharps disposal, and emergency procedures
Phase II Clinical Trials These promising preclinical findings led to Phase I and Phase II clinical trials in humans
For patients without absorption disorders, high-dose oral supplements of 1,000 to 2,000 mcg daily have been shown to be comparably effective at correcting mild to moderate deficiency at lower cost and greater convenience.
The NHS treatment page lays it out clearly: Loading phase (no neurological symptoms): 1mg every other day for two weeks, or until symptoms stop improving