home health b12 injections under medicare benefit and injections: Are They Covered? Vitamin B12 Medicare Coverage and
Description
Fatigue is also reported by some individuals after the injection
Esophagogastroduodenoscopy showed esophagitis and colonoscopy showed normal appearance of the mucosa

Schlichting and R
In June 2022, the MHRA published advice, following a review in Europe, which concluded that this side effect occurs more frequently than was previously thought (MHRA, 2022)

To ensure optimal results and safety, always check the expiration date and dispose of any expired vials properly