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 Orthopedic claims B12 tablet gives 'false positive results' compared to injection; internal medicine expert says 'not necessarily true' Health News The Indian Express Vitamin B 12 Injections Vs Oral Pills: Expert Insights Regenics Blog Vitamin B12 Forms Vitamin B12 injections deliver high doses of this essential vitamin directly into your bloodstream for better absorption than oral supplements to boost energy, support red blood cell production and maintain nerve function. Doctor Reveals Facts About B12 Injections