B12 Injections vs. Oral Supplements: Which Works Better? Are Vitamin B12 Tablets As Good As Injections? medicalweightlosscentersofamerica.com B12 Injections vs Oral Supplements: Which are more effective? Volonte 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