Here We Go Again! Pernicious Anaemia Society B12 shots can help with energy, focus, and just feeling better. My personal experience with this injection is not realizing I felt like I was living under a dark cloud. until I felt like I wasnt. Still taking vitamin B12 injections? Move over shot. A pill may be just as good. Dr. Leslie Greenberg's Blog Vitamin B12 Injection Dosage For Adults: A Comprehensive Guide. La Vie Med Spa 3mL 25G x 1" BD 305787 Luer Lok Syringe with BD Eclipse Safety MedNeedles US