It is widely available and has a strong market reputation, which keeps it at the forefront of the prescribing lists of many doctors
None of the Marketing Authorisation Holders in the UK use any clinical evidence for optimal dosage of 3 monthly treatment and base the information written in their Patient Information Leaflet upon BNF Guidelines and the Martindale Drug Reference book
However, it did not provide comprehensive insights into the pharmacokinetics and effects on vitamin B12 and related biomarkers after repeated intranasal administration
It is important to get enough vitamin B12 during pregnancy and when nursing, as a B12 deficiency Learn more: What is vitamin B12 deficiency
This transporter, found mainly in skeletal and heart muscle plus fat cells, ties closely to blood sugar control and diabetes risk
[1] Selectivity testing indicated the scaffold did not inhibit related SAM-dependent methyltransferases or NAD+ salvage enzymes