best injection for vitamin b12 deficiency – Manufacturer Benefits of Vitamin B12 Shots
Description
Folate, vitamin B12, and S-adenosylmethionine

Patients were given a single tablet of B vitamins containing 2.5 milligrams of folic acid, 25 milligrams of vitamin B6 and one milligram of vitamin B12 per day for 36 months or a matching placebo

Crovesy, L., Ostrowski, M., Ferreira, D

PMID 22254022
