vitamin b12 injection painful How to self-inject intramuscular - Overview What happens if you inject

A single injection takes only a few minutes, making it one of the most time-efficient supplementation methods available

In some cases, individuals may experience temporary dizziness or headache

Improved Neurological Function Vitamin B12 is essential for maintaining the health of nerve cells and producing the myelin sheath, which protects nerves

Pernicious anaemia patients 'self-medicating' Published Patients with a vitamin deficiency caused by pernicious anaemia are buying doses abroad as the UK's provision is "not adequate", according to a charity

The injection site should always be cleaned with an alcohol swab and allowed to dry before injecting

Heffernan, M., et al