arm sore after b12 injection hurts Vitamin B12 Injections in Tulsa, Oklahoma Sore Arm From Flu Shot:

B12 supplements may improve heart health by reducing homocysteine levels, a compound that is associated with an increased risk of heart disease

Most current research-context subcutaneous protocols cite 300-500 mcg/day, but no published human pharmacokinetic study has formally evaluated the subcutaneous route

Product Details Strength: 100 mcg/mL Volume: 10 mL multi-dose vial (total 1000 mcg) Form: Injectable solution Active Ingredient: Cyanocobalamin (Vitamin B12) Dosing: Equivalent to ten 1 mL weekly injections (as directed by a healthcare provider) Manufacturer: Sandoz The Sandoz Vitamin B12 Injectable Solution is a trusted option for patients who require ongoing supplementation to prevent or treat vitamin B12 deficiency

A balanced diet with animal products can prevent B12 deficiency, notes a top nutrition expert

doi: 10.1016/s0378-4347(00)81072-5

It's also a natural form of B12 used more slowly and provides continuous daily support