unopened bac water in fridge How Long Is Good For? Shelf Life & Storage Guide Bacteriostatic Water for Injection USP
Description
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Any bacteriostatic water that contains 0.9% benzyl alcohol in USP-grade sterile water meets the requirement

The forms of B12 were not always reported, but included cyano-, hydroxo- and methyl-B12
They are mild by design, but like any injection, they can cause reactions
This includes patients with a known copper allergy or Wilsons disease (a genetic copper overload disorder)
