b12 intramuscular injection dosage Cyanocobalamin Vitamin 1000 mcg — Mountainside Medical Instruction Guide for Intramuscular (IM)

The signaling through these neurons is increased by ghrelin and attenuated by leptin

The uneducated clinicians will say, you dont have Intrinsic factor antibodies (IFA) so you dont have pernicious anaemia (PA) and so you will stay on tablets because we decided you can now miraculously absorb B12 from food! This ludicrous concept crops up frequently (I have blogged about it before here.) It needs repeating so often PA is just one of many causes and they are all serious and need correct treatment

[DOI] [PubMed] [Google Scholar] 14.Ahmad M

Heres the whole thing in plain terms: What they did: built and validated a lab-grade method to accurately measure 5A1MQ in the blood, then dosed rats two ways intravenous (IV) and oral and tracked exactly how much showed up in circulation over time

Never discontinue B12 injections without medical advice, even if you feel completely well, as deficiency can recur and cause irreversible neurological damage if left untreated