For subcutaneous injections, the abdomen (two inches from the navel), the outer upper arm, and the front of the thigh all work well and are easier to pinch
Physical Symptoms: Fatigue, Weakness, and Balance Issues Vitamin B12 is important for making red blood cells and keeping our nervous system healthy
Vitamin B12 Injection Dosage: How Much Should You Take Per Day in Duluth GA
Thomas A, Grgens C, Guddat S, et al
Individualizing B12 Injection Dosage for Adults Its important to tailor Vitamin B12 injections for adults
Guide for the Care and Use of Laboratory Animals , 8th ed, 220 (National Academies Press, 2011)