You would never know by looking at it, because the solution might still appear clear, but the biological activity would be degraded
Its long action profile supports a single weekly subcutaneous dose , holding steady exposure between injections and making once-weekly administration practical [3]
8 A case-control study that compared 25,956 patients who had vitamin B 12 deficiency with 184,199 control patients found a significantly increased risk of vitamin B 12 deficiency in patients who had taken proton pump inhibitors (odds ratio = 1.65) or histamine H 2 blockers (odds ratio = 1.25) for at least two years
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05 Swirl, do not shake Gently swirl or roll the vial between your hands until the powder dissolves into a clear solution