The first is newborns
This position is supported by the NICE Guideline and at the end of 2025 we launched our freely accessible Pernicious Anaemia and B12 Deficiency education programme to the NHS community
What to Expect Simple, subcutaneous injections twice weekly Loading phase: 2x weekly subcutaneous injections for 4-6 weeks, then 1x weekly for maintenance, per your doctor's prescribed protocol
In addition, B12 and appetite control go hand-in-hand
Intramuscular (IM) B12 Administration Protocol For those with vitamin B12 deficiency, intramuscular injections are a good treatment
Common side effects of vitamin B12 injections include mild diarrhea, itching, nausea and vomiting, dizziness, headaches, and hot flashes