is a b12 injection painful Shots at Home: How, Where & How Often to Inject Yourself Vitamin B12 Injections: Good or

While vitamin B12 deficiency is rare and most people get enough B12 from their diets, some people may be at greater risk of low B12 levels, including vegetarians and vegans, older adults and people with digestive system conditions, such as Crohn's disease and celiac disease

For side effects, who should not use it, and FDA compounding information, open the safety FAQ below

Multi-Dose Vial: 10 mL vials, available in a 10-pack (100 mL total)ideal for clinics, hospitals, and wellness programs

Regarding the hemoglobin level, the pooled effect sizes showed no difference between all routes of administration that could reach statistical significance