Learn More About Vitamin B-12 Contraindications Tell your provider about your other medicines, especially: chloramphenicol, colchicine, antibiotics, metformin, or medicines that reduce stomach acid, such as cimetidine (Tagamet), omeprazole (Prilosec), lansoprazole (Prevacid), esomeprazole (Nexium), and ranitidine (Zantac)
Vitamin B12 Intramuscular Dosage for Deficiency Treatment The first dose for treating vitamin B12 deficiency is 1000 mcg (1 mg) per shot
By preserving these critical cofactors, it enhances cellular metabolism at the fundamental level
The maintenance protocol (5 mg/week, cycled) is appropriate for longevity-focused use
For non-emergency concerns such as persistent injection site reactions or new neurological symptoms, contact your GP or NHS 111
[DOI] [PubMed] [Google Scholar] 207.Matsuda D, Tomoda H