Sometimes, the problem may be noticed right after the treatment, while in some cases, it develops slowly over weeks
it isnt unusual for those with B12 deficiency to be anemic for this reason

Product Features Name: Bacteriostatic Water Contents: 3 ml per vial Composition: Purified water (HO) with 0.9% benzyl alcohol Form: Sterile liquid, ready to use Packaging: Sealed glass vial with rubber cap and aluminum ring Quality: laboratory and research grade Application within research Bacteriostatic Water is often used as: Solvent for lyophilized peptides Diluent in chemical and biochemical experiments Part of protocols where long-term sterile storage is desired Tool in peptide and protein research for stable redissolution Storage Advice Store at room temperature (15-25 C) Protect from direct sunlight After opening, use within 28 days for optimum stability Advantages Sterile solution with bacteriostatic properties Extends the shelf life of reconstituted substances Ideal for precision work in peptide and biochemical research Convenient 3 ml vial for small research batches For research purposes only, not for human use
It is supplied for scientific research and laboratory use only
Frequency of Metformin-Associated B12 Deficiency An association between metformin therapy and B12 deficiency was first reported in 1969
However, the terms should not be treated as universal synonyms: a reconstitution solution formulated for a specific hormone or medication may contain buffers, stabilizers, or a different preservative concentration, making it unsuitable as a straight substitute for bacteriostatic water in peptide applications