Elsevier, Amsterdam, pp 431434 Goldin L, Gershon E, Lake C, Murphy D, McGinniss M, Sparkes R (1982) Segregation and linkage studies of plasma dopamine-beta-hydroxylase (DBH), erythrocyte catechol-O-methyltransferase (COMT), and platelet monoamine oxidase (MAO): possible linkage between the ABO locus and a gene controlling DBH activity
Guidelines emphasize that the choice between oral pills and intramuscular (IM) injections should be a shared decision between you and your doctor [3]
Astrocyte disruption of neurovascular communication is linked to cortical damage in an animal model of multiple sclerosis
OTC products often contain lower or variable doses and are not tailored to deficiency treatment
For patients concurrently taking metformin, periodic B12 monitoring should be considered , particularly if you have been on metformin for several years or have symptoms of deficiency, in line with MHRA and NICE recommendations