Intramuscular Injection Training Model with Liberia Ubuy Safe intramuscular (IM) injection in the gluteal region is given in the upper outer quadrant to avoid sciatic nerve injury. Incorrect site selection (inner, lower, or medial areas) increases the risk of Vitamin B1, B6, B12. Buttock injection Push Ep 04 @InjectionTips1 Why do nurses and doctors prefer giving injections on the buttocks? How to Give a B12 Injection: Step By Step Instructions