Pregnant or nursing mothers should avoid it, as there isn't enough research to confirm its safety
Your skepticism is valid
[DOI] [PubMed] [Google Scholar] 18.Ates O., Bilen H., Keles S., Alp H.H., Kele M.S., Yldrm K., Onda O., Pnar L.C., Civelekler M., Baykal O
Some people start noticing changes after a few sessions, while others may need several weeks
Patients should avoid ingesting large amounts of vitamin C within 1 hour of oral vitamin B12 administration Extended release potassium products Antibiotics such as gentamicin, neomycin, tobramycin Anti-seizure medications such as phenobarbital, phenytoin, primidone Medicines used to treat heartburn like H2 blockers such as cimetidine and proton pump inhibitors such as omeprazole Antacids such as ranitidine, cimetidine Vitamin B12 Injection Storage and Safety Information Vitamin B12 tablets should be in a cool and dry place