different types of b12 injection Types: Methyl vs. Cyano How to Choose the Best
Description
And 2 days later itching severe hives all over my body (my legs, my back, arms, everywhere)

But the timing of these results can vary depending on factors like how low your B12 levels were initially and how well your body absorbs the vitamin

Specific Dosage Guidelines Severe Deficiency : For patients with severe vitamin B12 deficiency, an initial dose of 1 mg (1000 g) of intramuscular hydroxocobalamin is commonly administered
:max_bytes(150000):strip_icc()/GettyImages-1331502792-cdc8ea8d1bb3486d96111406aff3ae34.jpg)
(Right) Nickle/cobalt allergic dermatitis
