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The United Kingdom National Quality Assessment Scheme for Haematinic Assays warns against false B12 results and the risk of neurological damage: In the event of any discordance between clinical findings of B12 deficiency and a normal B12 laboratory result, then treatment should not be delayed
It's sterile water with 0.9% benzyl alcohol added as a preservative
Purchasers are responsible for compliance with all applicable federal, state, and local regulations
Keep the vial away from direct light
Injections are generally more effective
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