The manufacturer's expiration date is the last point at which they can guarantee the product meets specifications
Clinical trials of ultra-high-dose methylcobalamin in ALS
Using the wrong solution type is another frequent error: substituting tap water, saline, or an unverified liquid for pharmaceutical-grade bacteriostatic or sterile water introduces contamination risk regardless of how carefully everything else is handled
Serious cases can result in megaloblastic anemia, where the ill-formed red blood cells cant move from the bone marrow to circulation
Volume 88, Issues 1112, 14 March 2011, Pages 535-542 Chang, C.-H., Tsai, W.-C., Lin, M.-S., Hsu, Y.-H., & Pang, J.-H
Avoid vigorous agitation, which may compromise peptide integrity