vitamin b12 1000ug inject CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 mL (1000 mcg/mL) 30 mL VIAL 12 per dose Contains a sterile vitamin B Vitamin B-12 1000mcg - Injection

Continued use may result in epithelial breakdown, corneal degeneration (corneal thinning, corneal erosion), corneal ulceration, or corneal perforation in susceptible patients

Oral Supplements This is a big one

In fact, its been found that B12 supplements taken orally are just as effective as intramuscular shots in overcoming states of deficiency when you take up to 1,000 micrograms a day

Injectable administration ensures rapid systemic absorption , particularly valuable for patients with malabsorption syndromes, gastrointestinal disorders, or those requiring higher therapeutic doses

[DOI] [PMC free article] [PubMed] [Google Scholar] 44.Lundt, S