Benefits of subcutaneous administration include: Easier for patients to give themselves injections Less risk of muscle irritation Potential for slower absorption, depending on the injection site Intravenous (IV) Usage in Clinical Settings Intravenous Vitamin B12 is usually used for severe deficiency cases or when quick correction is needed
For those with no known deficiencies or contraindications, vitamin B12 shots are often considered unnecessary and may not provide additional benefits
How to Administer Injections Safely Administering a Vitamin B12 injection involves a quick subcutaneous (under the skin) or intramuscular shot
These include BPC-157, KPV, TB-500, MOTs-C, Emideltide (DSIP), Semax, and Epitalon
There are also numbing creams, typically containing lidocaine, available at most drugstores