vitamin b12 injections and mthfr Hydroxocobalamin vs. Methylcobalamin (B12) for – Methyl-Life® Supplements Vitamin B12 Injections Cvs Can
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The doctor also might instruct you to give your child antihistamines in certain cases

We also saw a case where methyl B12 successfully treated a 32 year-old man suffering from recurrent hypersomnia for 12 years

Since B12 cannot be made by the body, it has to be procured from food or supplements

"Clinical trials generally identify the most dangerous side effects of drugs," says Ungar
You cannot make B12 yourself
iii) High risk: Three or more criteria rated as unclear or at least two criteria not met
