B12 Injections: How They Work and Who Needs Them Meo Nutrition Is it safe to give a lipotropic intramuscular injection and a vitamin B12 intramuscular injection at the same visit in a patient without allergies, severe hepatic disease, uncontrolled renal failure, pregnancy, nursing, How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust PDF) Vitamin B12 injections versus oral supplements. How much money could be saved by switching from injections to pills? How Often Should I Get Vitamin B12 Injections? Everything You Need to Know Genevieve & Co.