B12 Injections at Olympia McCartan's Boost Your Energy with ! Symptoms of low B12 includes: Constant fatigue Lack of energy Memory problems Pins and needles sensations Depression or mood Cyanocobalamin injection (Vitamin B12) how to use: Uses, Dosage, Side Effects, Contraindications Still taking vitamin B12 injections? Move over shot. A pill may be just as good. Dr. Leslie Greenberg's Blog Cyanocobalamin Vitamin B12 Injection 1000 mcg Mountainside Medical