b12 injection weekly Methylcobalamin 10,000mcg injectable, 10mL (lyophilized) Compounded Hydroxocobalamin (Vitamin B12) Injection

doi:10.7759/cureus.8166 Spartalis M, Spartalis E, Tzatzaki E, et al

This autoimmune condition attacks the intrinsic factor, a protein your stomach makes that's required for B12 absorption

Vitamin B12 shots are administered most often in those with genetic conditions that block absorption and people with the disorder called pernicious anemia, which can result in severe malabsorption and deficiency

Overall health and stress levels: Chronic stress, illness, or high physical demands can affect recovery time and the perceived impact of B12 injections

Dosage and Frequency Once a week Taken on the same day each week, any time of day, with or without food

Cyanocobalamin is the most common form