Hi everyone, I am now taking bookings for B12 injections. A course is recommened to help the vitamin get into the system. One a week x4 weeks One a fortnight (over 4 How Often Should You Get B12 Injections? Infusion For Health Vitamin B 12 intramuscular injections are also used therapeutically to help restore energy and combat various symptoms related to such deficiencies. Vitamin B 12 is essential to the development of healthy blood cells, nerve Vitamin B 12 3000 mcg Injection 250mL