can b12 injection be given in deltoid Shots at Home: How, Where & How Often to Inject Yourself Deltoid Intramuscular Injection: Technique, Site,

In this article, well go over the risk of vitamin B12 deficiency and the need for supplementation after gastric bypass surgery

Andres E, Federici L, Affenberger S, Vidal-Alaball J, Loukili NH, Zimmer J, et al: B12 deficiency: a look beyond pernicious anemia

Cyanocobalamin (Vitamin B12): Cyanocobalamin is crucial for energy production as it helps convert carbohydrates into glucose, providing your body with a steady energy supply

Reading the comments on this page has helped me to understand I am not alone with this reaction

[107] Anti-seizure medications phenobarbital, pregabalin, primidone and topiramate are associated with lower than normal serum vitamin concentration