Pernicious Anemia Diagnosis and Drug Induced B12 Deficiency Med Ed 101 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. Understanding the B12 Vitamin Shot: Benefits, Risks, and Dosage Guide Special #2: Four Weekly Lipotropic MIC B12 Injections + Body Composition Analysis TruCare Health Vitamin B12 level test: Uses, normal ranges, and results Vitamin B12 Deficiency: Recognition and Management AFP