Side effects may include local injection site reactions, gastrointestinal disturbances, hypersensitivity reactions, hemolytic anemia in G6PD-deficient patients, and kidney stone formation in susceptible individuals
not a stand-alone)
1 However, few studies have determined rates of IDA in an Australian pregnant population according to consistent definitions
Alternatives to B12 Vitamin Shots and Dietary Supplements Several alternatives exist for those who prefer not to take injections to maintain adequate Vitamin B12 levels
One ampoule contains: Hydroxocobalamin acetate 1000 g, sodium chloride, sodium acetate, acetic acid, water for injections
The recommended dietary allowance for adults is 2.4 micrograms per day according to the NIH Office of Dietary Supplements (updated 2025)