An added bonus
Common subcutaneous injection sites include the lower abdomen, front of the thigh, and side or back of the upper arm
However, many people who are deficient are simply this way because their bodies are unable to absorb Vitamin B12 efficiently
These extremely rare side effects include: Reactive thrombocytosis during the first week of use in megaloblastic anaemia Hypersensitivity reactions including: rash, itching, exanthema, antibodies to HYDR0XOCOBALAMIN-transcobalamin II Anaphylaxis Hypokalaemia Headache, paraesthesia, tremor Irregular heartbeat (arrhythmias secondary to hypokalaemia) Nausea Vomiting Diarrhoea Fever, chills, hot flushes, dizziness, malaise, pain and / or swelling at the injection site Acne Abnormal colouration of the urine (chromaturia) What should you not do after a B12 shot
Results may vary based on your initial deficiency level
Journal General Practice 12 (4), 169173