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how to give myself a b12 injection self-inject intramuscular vitamin - Overview B12 SELF-INJECTION GUIDE | IM
Description
The amount of injections contained in each vial is dependent upon the dosing requirements of the animal as determined by your veterinarian

References Heffernan MA, et al
[DOI] [PubMed] [Google Scholar] 122.Klonoff DC, Buse JB, Nielsen LL, et al

How much AHK-Cu to use

However, once you've opened a multi-dose vial, it typically remains good for about 28 daysbut always follow your pharmacist's specific guidance on this