b12 injections weekly Vitamin Injections: What You Need To Know What Is B12 Injection What's

Common reasons include: Pernicious anemia , an autoimmune condition affecting intrinsic factor production Gastrointestinal disorders, such as Crohns disease or celiac disease Prolonged use of certain medications, like proton pump inhibitors Knowing these causes helps spot at-risk people

This includes people with pernicious anemia, a condition where the body lacks intrinsic factors, making it impossible to absorb B12 from food

J Clin Invest 1971;50:10004

Seizure medications such as phenytoin and phenobarbital, as well as diabetes medications like metformin, can lower B12 levels over time

PMID: 18454811.

Cyanocobalamin can lead to optic nerve damage (and possibly blindness) in people with Leber's disease