These patients are often recommended to receive 1 mg of oral vitamin B12 daily indefinitely, but intramuscular injections may be necessary if oral supplementation is insufficient Mahawar2018Langan2017
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
Lipotropic B12 Injections vs
Is semaglutide with B12 safe
If it was hydroxocobalamin then you're extremely unlikely to get an allergic reaction to it on subsequent jabs