Main benefits of B12 injections 1) Increased energy & reduced fatigue B12 helps convert food into usable energy Deficiency often causes tiredness, weakness, and low stamina 2) Healthy red blood cells Prevents Cyanocobalamin Injection USP 1000 mcg mL SDV Suprememed Vitamin B12 Shots Specialist Near Me in Canton, MI If you've been feeling run down lately you could be deficient in Vitamin B12. Physical symptoms of B12 deficiency include mouth ulcers, fatigue, digestive issues and muscle aches. There are also neurological B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics