what happens if you inject b12 into vein Wrong? · PA Relief What You Need to Know

The plunger is the rod that sits within the barrel and operates like a piston

choose a different site with more subcutaneous tissue

Having an autoimmune disease : Some autoimmune diseases can damage the stomach lining (including pernicious anemia) where intrinsic factor is produced

At the cellular level, B12 acts as a cofactor for two critical enzymatic reactions: Methionine synthase converts homocysteine to methionine, essential for DNA methylation and synthesis Methylmalonyl-CoA mutase involved in fatty acid metabolism and myelin production By restoring adequate B12 levels, injections enable normal red blood cell maturation in the bone marrow, correcting the megaloblastic anaemia