why b12 injection is painful Injections for Energy: Benefits and How It Works Do B12 Injections Hurt? Painful – why is b12 injections so – Pain after B12 injection |

Notify your medical director

pylori infection (a common cause of peptic ulcers)

Its comfortable and away from large nerves or blood vessels

Possible Side Effects Mild side effects of Vitamin B12 may include: ( 12 ) Mild pain, itching, or swelling at the injection site Temporary nausea or headache Mild diarrhea Hot flashes Vomiting These side effects do not affect all patients and are generally temporary and mild While rare, more serious side effects of Vitamin B12 injections can include ( 12 ): Irregular heartbeat Heart palpitations Hives or skin rash If you notice any severe reactions to a Vitamin B12 shot, contact a medical professional immediately