vitamin b12 injection cvs injections Compounded Methylcobalamin (Vitamin B12) Injection, 5mg/mL As a dietary supplement CVS Vitamin B12 Tablets -

Indications and Usage for B-12 Compliance Injection Cyanocobalamin is indicated for vitamin B12 deficiencies due to malabsorption which may be associated with the following conditions: Addisonian (pernicious) anemia Gastrointestinal pathology, dysfunction, or surgery, including gluten enteropathy or sprue, small bowel bacteria overgrowth, total or partial gastrectomy Fish tapeworm infestation Malignancy of pancreas or bowel Folic acid deficiency It may be possible to treat the underlying disease by surgical correction of anatomic lesions leading to small bowel bacterial overgrowth, expulsion of fish tapeworm, discontinuation of drugs leading to vitamin malabsorption (see DRUG INTERACTION), use of a gluten-free diet in nontropical sprue, or administration of antibiotics in tropical sprue

Physiol Rev

However, three real risks exist: reduced therapeutic effect (dangerous for diabetes management), potential contamination in older opened vials, and possible immunogenic responses from aggregated peptides

I am not seeing it in any side effect reports