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Another fantastic option is to include B12 in a subcutaneous fluid injection

A review: exploring synthetic schemes and structure-activity relationship (SAR) studies of mono-carbonyl curcumin analogues for cytotoxicity inhibitory anticancer activity

It does not tell you the final concentration after mixing, the injection volume, the sterility of the product, or whether the source is appropriate for human use

Reaction of UA with NO in Human Plasma and Aortic Endothelial Cell (HAEC) Lysates [Reactions 9 and 10] Reactions of NO with 15 N 2 -UA human plasma or cell lysates were performed in a similar fashion to the reactions outlined above with the following exceptions: 15 N 2 -UA (0.310 mM) was added to a mixture of human plasma or HAEC lysate in PBS (1:3 volumetric ratio)

But that is not the whole picture