side effects of b12 injections in humans Compounded Cyanocobalamin (Vitamin B12) Injection B12 Shots at Home: How,

It is available by prescription only and should be administered by a healthcare professional

Can You Get Too Much B12

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lot and expiration date on label Storage: Store at controlled room temperature

1998 Oct;46(5):194-6

Individuals receiving therapeutic B12 injections or taking high-dose oral supplements without medical supervision face the greatest risk of very high levels