Related Substances Chromatography should resolve starting materials, positional isomers, degradation products and synthesis-related impurities
Laboratory factors can also affect results, including assay interference (macro-B12) and variations in reference ranges between laboratories
NICE and the BNF provide clear guidance on appropriate use, emphasising that injections should be reserved for cases where oral supplementation is inadequate or inappropriate
Possible mild effects : local injection site soreness, slight flushing Rare : nausea, dizziness, allergic reaction Contraindications : hypersensitivity to any component
Vitamin B12 injections are clinically indicated for specific patient groups with documented deficiency or malabsorption conditions, rather than as a general energy supplement
Twenty g protein for WAT and 50 g protein for liver was subjected to SDS-PAGE