b12 injection vs oral Vitamin Injections vs. Supplements: Which is Better? is oral b12 as effective

INDICATIONS AND USAGE Cyanocobalamin is indicated for vitamin B 12 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 Cyanocobalamin Injection, USP is also suitable for the vitamin B 12 absorption test (Schilling test)

doi:10.1177/02601060221144801

never skip escalation steps [6]

However, since this is a single study, more research is required in this field (5)

The medication should be injected subcutaneously into fatty tissue of the abdomen, thigh, or upper arm, with the abdomen often being preferred due to consistent absorption and ease of access