Eur J Endocrinol
R.et al
Baseline labs anchor the decision: bloodwork is ordered before any vial is opened, not after the patient is already cycling
Indications and Usage for B!2 Inject Kit 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 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 Interactions), use of a gluten-free diet in nontropical sprue, or administration of antibiotics in tropical sprue
eGFR, estimated glomerular filtration rate
It really depends on your goals, how your body absorbs nutrients, and what kind of support you need long-term