can vitamin b12 injections be harmful Shots: B12 Benefits, Uses, Risks Vitamin B12 Side Effects: Risks
Description
People with intrinsic factor defects who do not get treatment eventually develop a very serious, pernicious anemia

The experiment investigated the potential cytotoxicity of these factors using in vitro keratinocyte and fibroblast cell assays

A dosage of 2ml is recommended as safe, anything more could cause irritation at the injection site

The injection of methylcobalamin poses little risk and produces few common adverse effects

Concomitant medicines particularly insulin or sulfonylureas should be reviewed for interaction risk, and pregnancy or breastfeeding status should be assessed
