b12 injections are they painful why injection is for Energy: Benefits and How It Works Do B12 Injections Hurt? Painful – Foot Neuropathy and Nerve Pain

When adverse effects do occur following high-dose B12 administration, they are typically mild, transient, and often related to the route of administration rather than the vitamin itself

Theres a reason Japan uses methyl B12 almost exclusively, and they are world leaders in B12 research

Side effects from vitamin B2 in the preparation are rare but skin test or when necessary the more sensitive intradermal skin test may be advised to diagnose anaphylactic sensitivity (35)

2 Guidelines from the British Society for Haematology recommend injections three times per week for two weeks in patients without neurologic deficits