Vitamin B12 Injections: What You Need To Know A little insight to the importance of the b12 injections. My client hadn't been feeling well & had some bloods done with her GP. The results identified a severe deficiency in b12. Vitamin B12 Monthly Injection Dose: Typical Dosages & Administration Methods Liv Hospital VITAMIN B12 INJECTION Vitamin B12 Injection Dose for Adults: 7 Key Facts on Dosage & Frequency Liv Hospital B12 Injection Dose: 7 Key Guidelines for Adults and Common Prescriptions Liv Hospital