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Intramuscular injection provides a reliable and clinically effective route for restoring and maintaining adequate levels
It had limited food-supplement GRAS history in some jurisdictions but Australia's TGA placed it on Schedule 4 (prescription) in 2020
Vitamin B12 shots are generally safe for most people, but certain medical conditions may increase the risk of side effects or require careful consideration before starting the treatment
THF plays an important role in DNA synthesis, so reduced availability of THF results in ineffective production of cells with rapid turnover, in particular red blood cells, and also intestinal wall cells which are responsible for absorption
