Thank y'all again SO much
There are two types: Cyanocobalamin Methylcobalamin Which is better
Patient Education Cyanocobalamin Injection Cyanocobalamin injection is used to treat and prevent a lack of vitamin B12 that may be caused by any of the following: pernicious anemia (lack of a natural substance needed to absorb vitamin B12 from the intestine)

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 Interactions), use of a gluten-free diet in nontropical sprue, or administration of antibiotics in tropical sprue
The Phase 2 NEJM trial showed 24.2% average body weight reduction at 48 weeks in the 12mg group
It is a multivitamin injection formulated with Mecobalamin (Vitamin B12), Pyridoxine (Vitamin B6), and Nicotinamide (Vitamin B3), which work together to support nerve health, energy metabolism, and neurological function