Evaluating multiple sources of information is recommended before making any purchasing decision
Srinivas SR, Prasad PD, Umapathy NS, Ganapathy V, Shekhawat PS: Transport of butyryl-L-carnitine, a potential prodrug, via the carnitine transporter OCTN2 and the amino acid transporter ATB(0,+)
We respond within 24 hours with the COA PDF attached
However, high dose oral vitamin B12 therapy can also be effective, provided that the dose is sufficient, medication adherence is good, and a response is documented
Some practitioners extend titration even further for particularly sensitive individuals
The usual daily recommended amounts of cyanocobalamin, vitamin B12 either through dietary intake or supplementation should be taken during pregnancy (see Dosage)