what does the b12 injection do Advantages of Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine B12 Shots at Home: How,

If you let it go for too long, it can cause problems in your nervous system such as: Vision problems Memory loss A pricking or numbing sensation Difficulty speaking or walking due to ataxia (loss of physical coordination) Damage to your extremities (hands, feet, arms, etc.), particularly your legs Other problems could include Infertility (this should go away with B12 treatment) Stomach cancer Bleeding and infections Damage your heart, brain, bones, and other organs in your body If you're pregnant and don't get enough vitamin B12, your baby is at risk of a serious birth defect called a neural tube defect

Healthy red blood cells ensure the brain receives adequate oxygen, which is essential for clear thinking, sustained focus, and emotional stability

Potential side effects include rash, swelling of the face and tongue (very rare), nausea, diarrhea, and headache

Drop one dose level every 4 weeks (for example, from 10mg to 7.5mg to 5mg to 2.5mg)

That option is expensive in the long term