Intramuscular (IM) hydroxocobalamin is the recommended first-line treatment for pernicious anaemia in the UK, as advised by NICE and the British Society for Haematology
Retinal dehydrogenase enzymes metabolize retinal to retinol, and after esterification to retinyl esters, it is packed with non-converted -carotene into chylomicrons (144, 145)
It's sterile at the moment the vial is sealed, but once you insert a needle and introduce atmospheric exposure, bacteria can colonize within 2448 hours at room temperature
Healthcare professionals can find more details on Vitamin B12 treatment in guidelines
Combine an unvalidated dose with a product purchased as a "research chemical" of unverified identity, purity, and sterility, and the gap between online enthusiasm and responsible clinical practice becomes obvious
When REDEFINE 4 results are published, they will provide the first and only direct comparison between these two treatments using the same population, the same endpoints, and the same measurement protocols