vitamin b12 injection for nerve pain Injection: Energy Boost and Anemia Treatment — Mountainside Medical Vitamin B12 Injection at a

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Pharmacol Res 156:104806

If B12 levels are very low, injections are usually given first to be followed for maintenance by either tablets or injections

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

This typically takes 30 to 60 minutes