sore arm after b12 injection Possible allergic reaction to injections?? : r/B12_Deficiency Why Does Upper Arm Soreness

Intramuscular vitamin B 12 can be administered in two different forms: cyanocobalamin and hydroxocobalamin

Many people struggle with low B12 levels due to factors like diet, certain health conditions, or the natural effects of agingoften resulting in symptoms such as fatigue, weakness, or trouble concentrating

Adjust dose, wait 1-2 weeks to assess, then consider other changes if needed

If you convert 5mg to mcg, it is 5000mcg

Dinh Tran, MD , offers personalized B12 injection therapy to help restore your vitality

Some people require regular doses over time, while others may only need short-term treatment to restore their levels