Any injection-related adverse effects typically subside within one to three days following administration
Nonetheless, experts encourage erring on the side of safety and initiating research studies at a lower dose of about 1mg/daily for up to 10 days
Rao says, Its never a good idea to stop cold turkey, and it is critical to consult with your doctor before adjusting your doses
However, a recent meta-analysis of 14 randomized, placebo-controlled trials in 2,149 participants with heart failure found that supplemental coenzyme Q 10 (30-300 mg/day) resulted in a 39% reduction in mortality (seven studies), improved exercise capacity (four studies), but had no effect on left ventricular ejection fraction (nine studies) compared to placebo (34)
For adults, this results in 14.9 g of B12 absorbed per week
And again, I don't know where that's at