long term side effects of b12 injections Vitamin Vitamin B12 Injection: Uses, Benefits,
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What is 5 Amino 1 MQ

Presently, isatuximab is approved for the treatment of RRMM in combined therapy with pomalidomide and dexamethasone [79] and, in patients who have undergone two prior therapies, in combination with carfilzomib and dexamethasone [80]

You are elderly with reduced B12 synthesis from food

When liver cells are damaged or destroyed, they release stored cobalamin into the bloodstream

Difficulty walking or balance problems : Nerve damage caused by B12 deficiency can lead to difficulty walking, balance problems, and even muscle weakness
