As B12 is a water-soluble vitamin, it's generally considered safe (because any not used will be excreted via your urine), but even so you shouldn't take more than the recommended doses unless recommended to do so by your GP, as some studies have shown possible negative impacts of overdoing it
For those with serious anemia, this medication may rarely cause hypokalemia (low potassium)
Material discussed in non-research contexts that describes use regimens or compound "stacks" is not derived from clinical evidence and falls outside the scope of legitimate research
GS-441524 Antiviral with Vitamin B12 | 20mg/ml Chemical Formula: C12 H13 N5 O4 Concentration: 20mg/ml Quantity: 1 vial Purity: 99.4% pH: 2.2 Formulation: 5% ethanol, 30% propylene glycol, 45% PEG 400, 20% water
It's the gold standard for good reasons
Ultimately, understanding your body and working with a trusted provider is the best path forward